k8s kubernetes 安装
-1.准备工作 hadoop 服务器
10.156.50.35 yanfabu2-35.base.app.dev.yf zk1 hadoop1 master1 master sparkmaster k8s-master 10.156.50.36 yanfabu2-36.base.app.dev.yf zk2 hadoop2 master2 sparkwork1 k8s-node1 10.156.50.37 yanfabu2-37.base.app.dev.yf zk3 hadoop3 slaver1 sparkwork2 k8s-node2
0.关闭selinux和firewalld
systemctl status firewalldc
systemctl stop firewalld
service iptables status
service iptables stop
iptables -P FORWARD ACCEPT
vim /etc/sysctl.conf
vm.swappiness = 0
setenforce 0
vi /etc/selinux/config
SELINUX=disabled
sudo scp /etc/sysctl.conf root@10.156.50.36:/etc/
sudo scp /etc/sysctl.conf root@10.156.50.37:/etc/
5.安装 k8s
yum install -y kubernetes etcd [root@yanfabu2-35 zkkafka]# yum install -y kubernetes etcd
6.配置 master
6.1 配置启动 etcd
vim /etc/etcd/etcd.conf ETCD_DATA_DIR="/var/lib/etcd/master.etcd" ETCD_LISTEN_CLIENT_URLS="http://0.0.0.0:2379" ETCD_NAME="master" systemctl enable etcd systemctl start etcd lsof -i:2379
[root@yanfabu2-35 etcd]# lsof -i:2379 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME etcd 29520 etcd 6u IPv6 12019691 0t0 TCP *:2379 (LISTEN) etcd 29520 etcd 10u IPv4 12019694 0t0 TCP localhost:57236->localhost:2379 (ESTABLISHED) etcd 29520 etcd 12u IPv6 12019696 0t0 TCP localhost:2379->localhost:57236 (ESTABLISHED)
6.2 配置启动 apiserver
vim /etc/kubernetes/apiserver
KUBE_API_ADDRESS="--insecure-bind-address=0.0.0.0" KUBE_API_PORT="--port=8080" KUBELET_PORT="--kubelet-port=10250" KUBE_ETCD_SERVERS="--etcd-servers=http://10.156.50.35:2379" KUBE_SERVICE_ADDRESSES="--service-cluster-ip-range=10.254.0.0/16" KUBE_ADMISSION_CONTROL="--admission-control=NamespaceLifecycle,NamespaceExists,LimitRanger,SecurityContextDeny,ResourceQuota" KUBE_API_ARGS="" systemctl enable kube-apiserver.service systemctl start kube-apiserver.service lsof -i:8080
[root@yanfabu2-35 etcd]# vim /etc/kubernetes/apiserver [root@yanfabu2-35 etcd]# systemctl enable kube-apiserver.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-apiserver.service to /usr/lib/systemd/system/kube-apiserver.service. [root@yanfabu2-35 etcd]# systemctl start kube-apiserver.service [root@yanfabu2-35 etcd]# lsof -i:8080 COMMAND PID USER FD TYPE DEVICE SIZE/OFF NODE NAME kube-apis 29583 kube 43u IPv6 12031006 0t0 TCP *:webcache (LISTEN) kube-apis 29583 kube 44u IPv4 12031008 0t0 TCP localhost:37048->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 46u IPv6 12028585 0t0 TCP localhost:webcache->localhost:37048 (ESTABLISHED) kube-apis 29583 kube 47u IPv4 12028589 0t0 TCP localhost:37052->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 48u IPv6 12028590 0t0 TCP localhost:webcache->localhost:37052 (ESTABLISHED) kube-apis 29583 kube 55u IPv4 12028603 0t0 TCP localhost:37066->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 56u IPv6 12028604 0t0 TCP localhost:webcache->localhost:37066 (ESTABLISHED) kube-apis 29583 kube 57u IPv4 12031017 0t0 TCP localhost:37068->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 58u IPv6 12031018 0t0 TCP localhost:webcache->localhost:37068 (ESTABLISHED) kube-apis 29583 kube 59u IPv4 12031020 0t0 TCP localhost:37070->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 60u IPv6 12028606 0t0 TCP localhost:webcache->localhost:37070 (ESTABLISHED) kube-apis 29583 kube 61u IPv4 12031021 0t0 TCP localhost:37072->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 62u IPv6 12031022 0t0 TCP localhost:webcache->localhost:37072 (ESTABLISHED) kube-apis 29583 kube 63u IPv4 12028608 0t0 TCP localhost:37074->localhost:webcache (ESTABLISHED) kube-apis 29583 kube 64u IPv6 12028609 0t0 TCP localhost:webcache->localhost:37074 (ESTABLISHED)
http://10.156.50.35:8080/
{
"paths": [
"/api",
"/api/v1",
"/apis",
"/apis/apps",
"/apis/apps/v1beta1",
"/apis/authentication.k8s.io",
"/apis/authentication.k8s.io/v1beta1",
"/apis/authorization.k8s.io",
"/apis/authorization.k8s.io/v1beta1",
"/apis/autoscaling",
"/apis/autoscaling/v1",
"/apis/batch",
"/apis/batch/v1",
"/apis/batch/v2alpha1",
"/apis/certificates.k8s.io",
"/apis/certificates.k8s.io/v1alpha1",
"/apis/extensions",
"/apis/extensions/v1beta1",
"/apis/policy",
"/apis/policy/v1beta1",
"/apis/rbac.authorization.k8s.io",
"/apis/rbac.authorization.k8s.io/v1alpha1",
"/apis/storage.k8s.io",
"/apis/storage.k8s.io/v1beta1",
"/healthz",
"/healthz/ping",
"/healthz/poststarthook/bootstrap-controller",
"/healthz/poststarthook/extensions/third-party-resources",
"/healthz/poststarthook/rbac/bootstrap-roles",
"/logs",
"/metrics",
"/swaggerapi/",
"/ui/",
"/version"
]
}
6.3 配置启动kube-controller-manager安装配置
vim /etc/kubernetes/config KUBE_MASTER="--master=http://10.156.50.35:8080"
systemctl enable kube-controller-manager.service systemctl start kube-controller-manager.service
[root@yanfabu2-35 etcd]# systemctl enable kube-controller-manager.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-controller-manager.service to /usr/lib/systemd/system/kube-controller-manager.service. [root@yanfabu2-35 etcd]# systemctl start kube-controller-manager.service
6.4 配置启动kube-scheduler安装配置
systemctl enable kube-scheduler.service systemctl start kube-scheduler.service
[root@yanfabu2-35 etcd]# systemctl enable kube-scheduler.service Created symlink from /etc/systemd/system/multi-user.target.wants/kube-scheduler.service to /usr/lib/systemd/system/kube-scheduler.service. [root@yanfabu2-35 etcd]# systemctl start kube-scheduler.service
6.5 验证 节点
kubectl get nodes
[root@yanfabu2-35 etcd]# kubectl get nodes No resources found.
systemctl restart etcd kube-apiserver kube-controller-manager kube-scheduler systemctl restart etcd kube-apiserver kube-controller-manager kube-scheduler restart kubelet kube-proxy
7.配置 node
7.1 安装docker
yum install docker -y systemctl enable docker systemctl start docker
[root@yanfabu2-36 zkkafka]# systemctl enable docker Created symlink from /etc/systemd/system/multi-user.target.wants/docker.service to /usr/lib/systemd/system/docker.service. [root@yanfabu2-36 zkkafka]# systemctl start docker
7.2 安装kubernetes 的 kubelet kube-proxy 启动并配置
7.2.1 k8s-node1
yum install kubernetes -y systemctl enable kubelet.service systemctl enable kube-proxy.service
vim /etc/kubernetes/kubelet KUBELET_ADDRESS="--address=10.156.50.36" KUBELET_PORT="--port=10250" KUBELET_HOSTNAME="--hostname-override=k8s-node1" KUBELET_API_SERVER="--api-servers=http://10.156.50.35:8080"
systemctl start kubelet systemctl start kube-proxy
7.2.1 k8s-node1
yum install kubernetes -y systemctl enable kubelet.service systemctl enable kube-proxy.service
vim /etc/kubernetes/kubelet KUBELET_ADDRESS="--address=10.156.50.37" KUBELET_PORT="--port=10250" KUBELET_HOSTNAME="--hostname-override=k8s-node2" KUBELET_API_SERVER="--api-servers=http://10.156.50.35:8080"
systemctl start kubelet systemctl start kube-proxy systemctl restart kubelet kube-proxy systemctl restart etcd kube-apiserver kube-controller-manager kube-scheduler restart kubelet kube-proxy
[root@yanfabu2-35 etcd]# kubectl get nodes NAME STATUS AGE k8s-node1 NotReady 9s [root@yanfabu2-35 etcd]# kubectl get nodes NAME STATUS AGE k8s-node1 Ready 32s k8s-node2 Ready 10s [root@yanfabu2-35 etcd]# etcdctl ls /registry /registry/serviceaccounts /registry/minions /registry/clusterroles /registry/ranges /registry/namespaces /registry/clusterrolebindings /registry/services /registry/events
8.安装docker
8.1 安装 docker registry
docker pull registry mkdir -p /opt/data/registry sudo docker run -d -p 5000:5000 -v /opt/data/registry:/var/lib/registry --name registry registry sudo vim /etc/default/docker DOCKER_OPTS="--registry-mirror=http://hub-mirror.c.163.com --insecure-registry 10.156.50.35:5000" systemctl restart docker docker restart registry docker tag redis 10.156.50.35:5000/redis docker push 10.156.50.35:5000/redis docker images
8.2 安装 docker master
yum install -y docker-distribution.x86_64 systemctl enable docker-distribution.service systemctl start docker-distribution.service yum install -y docker
[root@bogon etc]# docker push 192.168.206.243:5000/busybox The push refers to a repository [192.168.206.243:5000/busybox] Get https://192.168.206.243:5000/v1/_ping: http: server gave HTTP response to HTTPS client
vim /etc/docker/daemon.json
{
"insecure-registries":["10.156.50.35:5000"]
}
systemctl enable docker
systemctl start docker
8.3 安装 docker node
yum install -y docker-distribution.x86_64
systemctl enable docker-distribution.service
systemctl start docker-distribution.service
yum install -y docker
vim /etc/docker/daemon.json
{
"insecure-registries":["10.156.50.35:5000"]
}
systemctl enable docker
systemctl start docker
9.安装overlay网络
9.1.安装flannel
flannel：基于隧道，效率慢
calico：基于可路由的IP地址，三层，效率高
三台机器 yum install -y flannel [root@yanfabu2-37 zkkafka]# yum install -y flannel
9.2 修改 网络配置 /atomic.io/network/config
etcdctl set /atomic.io/network/config '{"Network":"172.17.0.0/16"}'
etcdctl get /atomic.io/network/config
curl http://10.156.50.35:2379/v2/keys/atomic.io/network/config -XPUT -d value='{"Network":"172.17.0.0/16"}'
etcdctl get /atomic.io/network/config
/atomic.io/network/config保存key的地方，flanneld会读取这个配置，保证自己能获取到subnet
这个key可以任意指定，当host主机分配到subnet后，key会修改docker的启动参数
[root@yanfabu2-35 zkkafka]# etcdctl set /atomic.io/network/config '{"Network":"10.10.0.0/16"}'
{"Network":"10.10.0.0/16"}
[root@yanfabu2-35 zkkafka]# etcdctl get /atomic.io/network/config
{"Network":"10.10.0.0/16"}
[root@yanfabu2-35 zkkafka]# curl http://10.156.50.35:2379/v2/keys/atomic.io/network/config -XPUT -d value='{"Network":"172.17.0.0/16"}'
{"action":"set","node":{"key":"/atomic.io/network/config","value":"{\"Network\":\"172.17.0.0/16\"}","modifiedIndex":337327,"createdIndex":337327},"prevNode":{"key":"/atomic.io/network/config","value":"{\"Network\":\"10.10.0.0/16\"}","modifiedIndex":337309,"createdIndex":337309}}
[root@yanfabu2-35 zkkafka]# etcdctl get /atomic.io/network/config
{"Network":"172.17.0.0/16"}
9.3.修改flannel 并启动 （三台服务器修改配置文件并启动）
vim /etc/sysconfig/flanneld FLANNEL_ETCD_ENDPOINTS="http://10.156.50.35:2379" FLANNEL_ETCD_PREFIX="/atomic.io/network" systemctl stop docker systemctl enable flanneld.service systemctl start flanneld.service systemctl start docker ip add show flannel0 ip add show docker0
[root@yanfabu2-35 zkkafka]# ip add show flannel0
5: flannel0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472 qdisc pfifo_fast state UNKNOWN group default qlen 500
link/none
inet 172.17.102.0/16 scope global flannel0
valid_lft forever preferred_lft forever
inet6 fe80::b727:219b:ba22:621b/64 scope link flags 800
valid_lft forever preferred_lft forever
[root@yanfabu2-35 zkkafka]# ip add show docker0
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:63:71:53:cd brd ff:ff:ff:ff:ff:ff
inet 172.17.102.1/24 scope global docker0
valid_lft forever preferred_lft forever
[root@yanfabu2-36 zkkafka]# ip add show flannel0
4: flannel0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472 qdisc pfifo_fast state UNKNOWN group default qlen 500
link/none
inet 172.17.87.0/16 scope global flannel0
valid_lft forever preferred_lft forever
inet6 fe80::7580:44e9:9d54:3248/64 scope link flags 800
valid_lft forever preferred_lft forever
[root@yanfabu2-36 zkkafka]# ip add show docker0
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:3d:f7:11:07 brd ff:ff:ff:ff:ff:ff
inet 172.17.87.1/24 scope global docker0
valid_lft forever preferred_lft forever
[root@yanfabu2-37 zkkafka]# ip add show flannel0
4: flannel0: <POINTOPOINT,MULTICAST,NOARP,UP,LOWER_UP> mtu 1472 qdisc pfifo_fast state UNKNOWN group default qlen 500
link/none
inet 172.17.89.0/16 scope global flannel0
valid_lft forever preferred_lft forever
inet6 fe80::acce:ffa6:a0cd:8b6d/64 scope link flags 800
valid_lft forever preferred_lft forever
[root@yanfabu2-37 zkkafka]# ip add show docker0
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:95:1a:4d:54 brd ff:ff:ff:ff:ff:ff
inet 172.17.89.1/24 scope global docker0
valid_lft forever preferred_lft forever
[root@yanfabu2-37 zkkafka]#
[zkkafka@yanfabu2-35 ~]$ route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0.0.0.0 UG 100 0 0 ens192 10.156.50.0 0.0.0.0 255.255.255.0 U 100 0 0 ens192 172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 flannel0 172.17.102.0 0.0.0.0 255.255.255.0 U 0 0 0 docker0 [root@yanfabu2-36 zkkafka]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0.0.0.0 UG 100 0 0 ens192 10.156.50.0 0.0.0.0 255.255.255.0 U 100 0 0 ens192 172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 flannel0 172.17.87.0 0.0.0.0 255.255.255.0 U 0 0 0 docker0 [root@yanfabu2-37 zkkafka]# route Kernel IP routing table Destination Gateway Genmask Flags Metric Ref Use Iface default gateway 0.0.0.0 UG 100 0 0 ens192 10.156.50.0 0.0.0.0 255.255.255.0 U 100 0 0 ens192 172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 flannel0 172.17.89.0 0.0.0.0 255.255.255.0 U 0 0 0 docker0
10. 安装pods
10.0 修改 sysctl.d/k8s.conf
vim /etc/sysctl.d/k8s.conf net.bridge.bridge-nf-call-ip6tables = 1 net.bridge.bridge-nf-call-iptables = 1 scp /etc/sysctl.d/k8s.conf root@10.156.50.36:/etc/sysctl.d/ scp /etc/sysctl.d/k8s.conf root@10.156.50.37:/etc/sysctl.d/
10.1 编写 redis-pod.yaml
mkdir yaml
cd yaml
vim redis-pod.yaml
aipVersion: v1 #声明kubernetes的API的版本，目前是v1
kind: Pod #声明API的对象类型，这里类型是pod
metadata: #设置pod的元数据
name: redis #指定pod的名称，pod的名称必须在namespace内唯一
labels:
app: redis
spec: #设置pod具体规格
containers: #设置pod中容器的规格，数组形式，每一项定义一个容器
- name: redis #指定容器的名称
image: 10.156.50.35:5000/redis #设置容器镜像
kubectl create -f redis-pod.yaml
[root@yanfabu2-35 yaml]# kubectl create -f redis-pod.yaml Error from server (ServerTimeout): error when creating "redis-pod.yaml": No API token found for service account "default", retry after the token is automatically created and added to the service account openssl genrsa -out /etc/kubernetes/serviceaccount.key 2048 vim /etc/kubenetes/apiserver KUBE_API_ARGS="--service_account_key_file=/etc/kubernetes/serviceaccount.key" vim /etc/kubernetes/controller-manager KUBE_CONTROLLER_MANAGER_ARGS="--service_account_private_key_file=/etc/kubernetes/serviceaccount.key" systemctl restart etcd kube-apiserver kube-controller-manager kube-scheduler
10.2 启动 redis-pod
kubectl create -f redis-pod.yaml kubectl describe pod redis kubectl get pods -o wide kubectl get pods redis -o yaml kubectl exec -ti redis /bin/bash kubectl delete pod redis
[root@yanfabu2-35 yaml]# kubectl create -f redis-pod.yaml
pod "redis" created
[root@yanfabu2-35 yaml]# kubectl get pods
NAME READY STATUS RESTARTS AGE
redis 0/1 ContainerCreating 0 7s
[root@yanfabu2-35 ~]# kubectl describe pod redis
Name: redis
Namespace: default
Node: k8s-node2/10.156.50.37
Start Time: Wed, 03 Jul 2019 16:03:27 +0800
Labels: app=redis
Status: Pending
IP:
Controllers: <none>
Containers:
redis:
Container ID:
Image: 10.156.50.35:5000/redis
Image ID:
Port:
State: Waiting
Reason: ContainerCreating
Ready: False
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
Conditions:
Type Status
Initialized True
Ready False
PodScheduled True
Volumes:
default-token-8jc9w:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-8jc9w
QoS Class: BestEffort
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
1m 1m 1 {default-scheduler } Normal Scheduled Successfully assigned redis to k8s-node1
1m 19s 4 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request. details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)"
1m 7s 4 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\""
[root@yanfabu2-35 ~]# kubectl get pods -o wide NAME READY STATUS RESTARTS AGE IP NODE redis 0/1 ContainerCreating 0 27m <none> k8s-node2
10.3 解决 redis-pod 未运行成功
[root@yanfabu2-35 yaml]# kubectl get pods
NAME READY STATUS RESTARTS AGE
redis 0/1 ContainerCreating 0 7s
kubectl describe pod redis
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
1m 1m 1 {default-scheduler } Normal Scheduled Successfully assigned redis to k8s-node1
1m 19s 4 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request. details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)"
1m 7s 4 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\""
[root@yanfabu2-35 yaml]# cd /etc/rhsm/ca/redhat-uep.pem -bash: cd: /etc/rhsm/ca/redhat-uep.pem: 没有那个文件或目录 [root@yanfabu2-35 yaml]# yum provides */redhat-uep.pem 已加载插件：fastestmirror Loading mirror speeds from cached hostfile elastic-6.x/filelists_db | 8.9 MB 00:00:00 python-rhsm-certificates-1.19.10-1.el7_4.x86_64 : Certificates required to communicate with a Red Hat Unified Entitlement Platform 源 ：base 匹配来源： 文件名 ：/etc/rhsm/ca/redhat-uep.pem
安装python-rhsm-certificates组件 yum install python-rhsm-certificates -y yum install yum-utils -y yumdownloader python-rhsm-certificates rpm -e subscription-manager-rhsm-certificates rpm -ivh python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm
10.4 解决 registry.access.redhat.com/rhel7/pod-infrastructure:latest 未运行成功
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
2m 2m 1 {default-scheduler } Normal Scheduled Successfully assigned redis to k8s-node1
2m 19s 9 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ImagePullBackOff: "Back-off pulling image \"registry.access.redhat.com/rhel7/pod-infrastructure:latest\""
2m 5s 5 {kubelet k8s-node1} Warning FailedSync Error syncing pod, skipping: failed to "StartContainer" for "POD" with ErrImagePull: "image pull failed for registry.access.redhat.com/rhel7/pod-infrastructure:latest, this may be because there are no credentials on this request. details: (open /etc/docker/certs.d/registry.access.redhat.com/redhat-ca.crt: no such file or directory)"
yum install -y *rhsm* wget http://mirror.centos.org/centos/7/os/x86_64/Packages/python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm rpm2cpio python-rhsm-certificates-1.19.10-1.el7_4.x86_64.rpm | cpio -iv --to-stdout ./etc/rhsm/ca/redhat-uep.pem | tee /etc/rhsm/ca/redhat-uep.pem ls -l /etc/rhsm/ca/
在有网络的docker下载 registry.access.redhat.com/rhel7/pod-infrastructure 然后上传到 node 上
[root@yanfabu2-35 yaml]# kubectl get pods NAME READY STATUS RESTARTS AGE redis 1/1 Running 0 8s
[root@yanfabu2-35 ~]# kubectl get pods -o wide
NAME READY STATUS RESTARTS AGE IP NODE
redis 1/1 Running 0 5m 172.17.89.2 k8s-node2
[root@yanfabu2-35 ~]# kubectl get pods redis -o yaml
apiVersion: v1
kind: Pod
metadata:
creationTimestamp: 2019-07-10T09:16:12Z
labels:
app: redis
name: redis
namespace: default
resourceVersion: "1203314"
selfLink: /api/v1/namespaces/default/pods/redis
uid: 5c429a31-a2f3-11e9-9ed9-005056bb8b05
spec:
containers:
- image: 10.156.50.35:5000/redis
imagePullPolicy: Always
name: redis
resources: {}
terminationMessagePath: /dev/termination-log
volumeMounts:
- mountPath: /var/run/secrets/kubernetes.io/serviceaccount
name: default-token-8jc9w
readOnly: true
dnsPolicy: ClusterFirst
nodeName: k8s-node2
restartPolicy: Always
securityContext: {}
serviceAccount: default
serviceAccountName: default
terminationGracePeriodSeconds: 30
volumes:
- name: default-token-8jc9w
secret:
defaultMode: 420
secretName: default-token-8jc9w
status:
conditions:
- lastProbeTime: null
lastTransitionTime: 2019-07-10T09:16:17Z
status: "True"
type: Initialized
- lastProbeTime: null
lastTransitionTime: 2019-07-10T09:16:19Z
status: "True"
type: Ready
- lastProbeTime: null
lastTransitionTime: 2019-07-10T09:16:12Z
status: "True"
type: PodScheduled
containerStatuses:
- containerID: docker://15a83967ab49a00295ece474c89da7406e62cee14ded8f61b6509bfcc3cb0252
image: 10.156.50.35:5000/redis
imageID: docker-pullable://10.156.50.35:5000/redis@sha256:efa9bdc679a6f4f8aee5a1ddc909e98d1257d47ba9326787669b82668b3dc100
lastState: {}
name: redis
ready: true
restartCount: 0
state:
running:
startedAt: 2019-07-10T09:16:18Z
hostIP: 10.156.50.37
phase: Running
podIP: 172.17.89.2
startTime: 2019-07-10T09:16:17Z
[root@yanfabu2-35 ~]#
[root@yanfabu2-35 ~]# kubectl logs redis 1:C 10 Jul 09:16:18.694 # oO0OoO0OoO0Oo Redis is starting oO0OoO0OoO0Oo 1:C 10 Jul 09:16:18.695 # Redis version=4.0.2, bits=64, commit=00000000, modified=0, pid=1, just started 1:C 10 Jul 09:16:18.695 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf 1:M 10 Jul 09:16:18.698 * Running mode=standalone, port=6379. 1:M 10 Jul 09:16:18.698 # WARNING: The TCP backlog setting of 511 cannot be enforced because /proc/sys/net/core/somaxconn is set to the lower value of 128. 1:M 10 Jul 09:16:18.699 # Server initialized 1:M 10 Jul 09:16:18.699 # WARNING you have Transparent Huge Pages (THP) support enabled in your kernel. This will create latency and memory usage issues with Redis. To fix this issue run the command 'echo never > /sys/kernel/mm/transparent_hugepage/enabled' as root, and add it to your /etc/rc.local in order to retain the setting after a reboot. Redis must be restarted after THP is disabled. 1:M 10 Jul 09:16:18.699 * Ready to accept connections
11.使用 k8s
vim springbootdemo-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
name: springbootdemo
labels:
name: springbootdemo
spec:
replicas: 2
selector:
name: springbootdemo
template:
metadata:
labels:
name: springbootdemo
spec:
containers:
- name: springbootdemo
image: springbootdemo:lasted
ports:
- containerPort: 7071
protocol: TCP
imagePullPolicy: IfNotPresent
vim springbootdemo-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: springbootdemo
labels:
name: springbootdemo
spec:
type: NodePort
ports:
- port: 30000
targetPort: 7071
protocol: TCP
nodePort: 30000
selector:
name: springbootdemo
port: 30000#service（对内）的端口
targetPort: 7071 #pod的端口
nodePort: 30000 #service对外的端口
kubectl create -f springbootdemo-svc.yaml kubectl create -f springbootdemo-rc.yaml
[root@yanfabu2-35 yaml]# kubectl get node NAME STATUS AGE k8s-node1 Ready 24d k8s-node2 Ready 24d [root@yanfabu2-35 yaml]# kubectl get nodes NAME STATUS AGE k8s-node1 Ready 24d k8s-node2 Ready 24d [root@yanfabu2-35 yaml]# kubectl get pod NAME READY STATUS RESTARTS AGE redis 1/1 Running 0 12d springbootdemo-rc-f3mmk 1/1 Running 0 7m springbootdemo-rc-lrjxp 1/1 Running 0 7m [root@yanfabu2-35 yaml]# kubectl get rc NAME DESIRED CURRENT READY AGE springbootdemo-rc 2 2 2 7m [root@yanfabu2-35 yaml]# kubectl get svc NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE kubernetes 10.254.0.1 <none> 443/TCP 24d springbootdemo-svc 10.254.170.110 <nodes> 7071:30000/TCP 17h [root@yanfabu2-35 yaml]# kubectl delete pod springbootdemo-rc-lrjxp pod "springbootdemo-rc-lrjxp" deleted [root@yanfabu2-35 yaml]# kubectl get pod NAME READY STATUS RESTARTS AGE redis 1/1 Running 0 12d springbootdemo-rc-f0x8c 1/1 Running 0 4s springbootdemo-rc-f3mmk 1/1 Running 0 7m springbootdemo-rc-lrjxp 1/1 Terminating 0 7m [root@yanfabu2-35 yaml]# kubectl get pod NAME READY STATUS RESTARTS AGE redis 1/1 Running 0 12d springbootdemo-rc-f0x8c 1/1 Running 0 15s springbootdemo-rc-f3mmk 1/1 Running 0 8m springbootdemo-rc-lrjxp 1/1 Terminating 0 8m [root@yanfabu2-35 yaml]# kubectl delete pods springbootdemo-rc-lrjxp Error from server (NotFound): pods "springbootdemo-rc-lrjxp" not found [root@yanfabu2-35 yaml]# kubectl delete pod springbootdemo-rc-lrjxp Error from server (NotFound): pods "springbootdemo-rc-lrjxp" not found [root@yanfabu2-35 yaml]# kubectl get pod NAME READY STATUS RESTARTS AGE redis 1/1 Running 0 12d springbootdemo-rc-f0x8c 1/1 Running 0 46s springbootdemo-rc-f3mmk 1/1 Running 0 8m
[root@yanfabu2-35 yaml]# kubectl describe pod springbootdemo-rc-f3mmk
Name: springbootdemo-rc-f3mmk
Namespace: default
Node: k8s-node1/10.156.50.36
Start Time: Tue, 23 Jul 2019 11:39:10 +0800
Labels: name=springbootdemo
Status: Running
IP: 172.17.87.3
Controllers: ReplicationController/springbootdemo-rc
Containers:
springbootdemo:
Container ID: docker://8e51329039bf1940c71eb59fc893f250d7bacb0e7d8c7b148d3fd22939eeb75f
Image: springbootdemo:lasted
Image ID: docker://sha256:3bf1f3faec9bd38b6a8cc59dd23c0746bb4b65d05103a2395a7223527ab17306
Port: 7071/TCP
State: Running
Started: Tue, 23 Jul 2019 11:39:10 +0800
Ready: True
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
Conditions:
Type Status
Initialized True
Ready True
PodScheduled True
Volumes:
default-token-8jc9w:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-8jc9w
QoS Class: BestEffort
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
9m 9m 1 {default-scheduler } Normal Scheduled Successfully assigned springbootdemo-rc-f3mmk to k8s-node1
9m 9m 2 {kubelet k8s-node1} Warning MissingClusterDNS kubelet does not have ClusterDNS IP configured and cannot create Pod using "ClusterFirst" policy. Falling back to DNSDefault policy.
9m 9m 1 {kubelet k8s-node1} spec.containers{springbootdemo} Normal Pulled Container image "springbootdemo:lasted" already present on machine
9m 9m 1 {kubelet k8s-node1} spec.containers{springbootdemo} Normal Created Created container with docker id 8e51329039bf; Security:[seccomp=unconfined]
9m 9m 1 {kubelet k8s-node1} spec.containers{springbootdemo} Normal Started Started container with docker id 8e51329039bf
11. 安装 skydns
jasonwangshuming/busybox latest c527b6e6531d 18 months ago 2.43MB jasonwangshuming/kube2sky-amd64 latest efc75cc4310f 18 months ago 29.2MB jasonwangshuming/skydns latest 4e96d800261d 18 months ago 40.5MB jasonwangshuming/exechealthz latest 3b614debf4d0 18 months ago 7.12MB jasonwangshuming/etcd-amd64 docker save -o etcd-amd64.tar jasonwangshuming/etcd-amd64 docker save -o kube2sky-amd64.tar jasonwangshuming/kube2sky-amd64 docker save -o skydns.tar jasonwangshuming/skydns docker save -o exechealthz.tar jasonwangshuming/exechealthz docker save -o busybox.tar jasonwangshuming/busybox docker load -i etcd-amd64.tar docker load -i kube2sky-amd64.tar docker load -i skydns.tar docker load -i exechealthz.tar docker load -i busybox.tar docker tag jasonwangshuming/etcd-amd64 10.156.50.35:5000/etcd-amd64 docker tag jasonwangshuming/kube2sky-amd64 10.156.50.35:5000/kube2sky-amd64 docker tag jasonwangshuming/skydns 10.156.50.35:5000/skydns docker tag jasonwangshuming/exechealthz 10.156.50.35:5000/exechealthz docker tag jasonwangshuming/busybox 10.156.50.35:5000/busybox docker push 10.156.50.35:5000/etcd-amd64 docker push 10.156.50.35:5000/kube2sky-amd64 docker push 10.156.50.35:5000/skydns docker push 10.156.50.35:5000/exechealthz docker push 10.156.50.35:5000/busybox docker pull 10.156.50.35:5000/etcd-amd64 docker pull 10.156.50.35:5000/kube2sky-amd64 docker pull 10.156.50.35:5000/skydns docker pull 10.156.50.35:5000/exechealthz docker pull 10.156.50.35:5000/busybox
apiVersion: v1
kind: ReplicationController
metadata:
name: kube-dns
labels:
app: kube-dns
spec:
replicas: 1
selector:
app: kube-dns
template:
metadata:
labels:
app: kube-dns
spec:
containers:
- name: etcd
image: 10.156.50.35:5000/etcd-amd64
resources:
limits:
cpu: 100m
memory: 500Mi
requests:
cpu: 100m
memory: 50Mi
command:
- /usr/local/bin/etcd
- -data-dir
- /var/etcd/data
- -listen-client-urls
- http://0.0.0.0:2379,http://0.0.0.0:4001
- -advertise-client-urls
- http://127.0.0.1:2379,http://127.0.0.1:4001
- -initial-cluster-token
- skydns-etcd
- name: kube2sky
image: 10.156.50.35:5000/kube2sky-amd64
args:
- --domain=cluster.local
- --kube-master-url=http://10.156.50.35:8080
resources:
limits:
cpu: 100m
memory: 200Mi
requests:
cpu: 100m
memory: 50Mi
- name: skydns
image: 10.156.50.35:5000/skydns
resources:
limits:
cpu: 100m
memory: 200Mi
requests:
cpu: 100m
memory: 50Mi
args:
- -machines=http://127.0.0.1:2379
- -addr=0.0.0.0:53
- -ns-rotate=false
- -domain=cluster.local.
- -nameservers=10.156.89.3:53,10.156.89.4:53
ports:
- containerPort: 53
name: dns
protocol: UDP
- containerPort: 53
name: dns-tcp
protocol: TCP
livenessProbe:
httpGet:
path: /healthz
port: 8080
scheme: HTTP
initialDelaySeconds: 60
timeoutSeconds: 5
successThreshold: 1
failureThreshold: 5
readinessProbe:
httpGet:
path: /readiness
port: 8080
scheme: HTTP
initialDelaySeconds: 30
timeoutSeconds: 5
- name: healthz
image: 10.156.50.35:5000/exechealthz
resources:
limits:
cpu: 10m
memory: 20Mi
requests:
cpu: 10m
memory: 20Mi
args:
- -cmd=nslookup kubernetes.default.svc.cluster.local localhost >/dev/null
- -port=8080
ports:
- containerPort: 8080
protocol: TCP
volumes:
- name: etcd-storage
emptyDir: {}
dnsPolicy: Default
apiVersion: v1
kind: Service
metadata:
name: kube-dns
labels:
app: kube-dns
spec:
selector:
app: kube-dns
clusterIP: 10.254.254.254
ports:
- name: dns
port: 53
protocol: UDP
- name: dns-tcp
port: 53
protocol: TCP
apiVersion: v1
kind: Pod
metadata:
labels:
name: busybox
name: busybox
spec:
containers:
- name: busybox
image: 10.156.50.35:5000/busybox
command:
- sleep
- "360000"
[root@yanfabu2-35 yaml]# kubectl describe pod kube-dns-0
Name: kube-dns-0r0cg
Namespace: default
Node: k8s-node2/10.156.50.37
Start Time: Wed, 24 Jul 2019 15:27:28 +0800
Labels: app=kube-dns
Status: Running
IP: 172.17.89.2
Controllers: ReplicationController/kube-dns
Containers:
etcd:
Container ID: docker://15b8700db0229a089fa536bd7036f11f7a9aed7f6aff1f360a0d7c92dc73eb35
Image: 10.156.50.35:5000/etcd-amd64
Image ID: docker-pullable://10.156.50.35:5000/etcd-amd64@sha256:60a9af2ecc64391ff207b41d26a9ad3c2c41648ece157609a0088a0f9905810b
Port:
Command:
/usr/local/bin/etcd
-data-dir
/var/etcd/data
-listen-client-urls
http://127.0.0.1:2379,http://127.0.0.1:4001
-advertise-client-urls
http://127.0.0.1:2379,http://127.0.0.1:4001
-initial-cluster-token
skydns-etcd
Limits:
cpu: 100m
memory: 500Mi
Requests:
cpu: 100m
memory: 50Mi
State: Running
Started: Wed, 24 Jul 2019 15:27:30 +0800
Ready: True
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
kube2sky:
Container ID: docker://6617ecebd1233204b5b1bcb26a7bad6e6ca6d15399749a5dd44fbb640b01556a
Image: 10.156.50.35:5000/kube2sky-amd64
Image ID: docker-pullable://10.156.50.35:5000/kube2sky-amd64@sha256:dbe1492b21a14fdfc5e9dabf813c96319a64f8856c69d77bcf41f262bda4aa69
Port:
Args:
--domain=cluster.local
--kube-master-url=http://10.156.50.35:8080
Limits:
cpu: 100m
memory: 200Mi
Requests:
cpu: 100m
memory: 50Mi
State: Running
Started: Wed, 24 Jul 2019 15:27:31 +0800
Ready: True
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
skydns:
Container ID: docker://a6d6de9e87cf9b3774d58733eb1619258fcbf89e3b4060103c7d66c0881c7e39
Image: 10.156.50.35:5000/skydns
Image ID: docker-pullable://10.156.50.35:5000/skydns@sha256:104e55075c00d8dbfd74d08b25174df84eff96dc1476d856ea4de2f60be7313a
Ports: 53/UDP, 53/TCP
Args:
-machines=http://127.0.0.1:4001
-addr=0.0.0.0:53
-ns-rotate=false
-domain=cluster.local.
Limits:
cpu: 100m
memory: 200Mi
Requests:
cpu: 100m
memory: 50Mi
State: Running
Started: Wed, 24 Jul 2019 15:27:31 +0800
Ready: True
Restart Count: 0
Liveness: http-get http://:8080/healthz delay=60s timeout=5s period=10s #success=1 #failure=5
Readiness: http-get http://:8080/readiness delay=30s timeout=5s period=10s #success=1 #failure=3
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
healthz:
Container ID: docker://76bed055175fee5c85f0cdb11eeeed17d37e1edd72b8d43cfd1e3505d3eb3864
Image: 10.156.50.35:5000/exechealthz
Image ID: docker-pullable://10.156.50.35:5000/exechealthz@sha256:61d1d0b35f1e954574a5be8138301251e9b394cf1514d00ef12db0395bb28e13
Port: 8080/TCP
Args:
-cmd=nslookup kubernetes.default.svc.cluster.local localhost >/dev/null
-port=8080
Limits:
cpu: 10m
memory: 20Mi
Requests:
cpu: 10m
memory: 20Mi
State: Running
Started: Wed, 24 Jul 2019 15:27:30 +0800
Ready: True
Restart Count: 0
Volume Mounts:
/var/run/secrets/kubernetes.io/serviceaccount from default-token-8jc9w (ro)
Environment Variables: <none>
Conditions:
Type Status
Initialized True
Ready True
PodScheduled True
Volumes:
etcd-storage:
Type: EmptyDir (a temporary directory that shares a pod's lifetime)
Medium:
default-token-8jc9w:
Type: Secret (a volume populated by a Secret)
SecretName: default-token-8jc9w
QoS Class: Burstable
Tolerations: <none>
Events:
FirstSeen LastSeen Count From SubObjectPath Type Reason Message
--------- -------- ----- ---- ------------- -------- ------ -------
4m 4m 1 {default-scheduler } Normal Scheduled Successfully assigned kube-dns-0r0cg to k8s-node2
4m 4m 1 {kubelet k8s-node2} spec.containers{healthz} Normal Pulling pulling image "10.156.50.35:5000/exechealthz"
4m 4m 1 {kubelet k8s-node2} spec.containers{healthz} Normal Created Created container with docker id 76bed055175f; Security:[seccomp=unconfined]
4m 4m 1 {kubelet k8s-node2} spec.containers{healthz} Normal Pulled Successfully pulled image "10.156.50.35:5000/exechealthz"
4m 4m 1 {kubelet k8s-node2} spec.containers{kube2sky} Normal Pulled Successfully pulled image "10.156.50.35:5000/kube2sky-amd64"
4m 4m 1 {kubelet k8s-node2} spec.containers{healthz} Normal Started Started container with docker id 76bed055175f
4m 4m 1 {kubelet k8s-node2} spec.containers{etcd} Normal Pulling pulling image "10.156.50.35:5000/etcd-amd64"
4m 4m 1 {kubelet k8s-node2} spec.containers{etcd} Normal Pulled Successfully pulled image "10.156.50.35:5000/etcd-amd64"
4m 4m 1 {kubelet k8s-node2} spec.containers{etcd} Normal Created Created container with docker id 15b8700db022; Security:[seccomp=unconfined]
4m 4m 1 {kubelet k8s-node2} spec.containers{kube2sky} Normal Pulling pulling image "10.156.50.35:5000/kube2sky-amd64"
4m 4m 1 {kubelet k8s-node2} spec.containers{etcd} Normal Started Started container with docker id 15b8700db022
4m 4m 1 {kubelet k8s-node2} spec.containers{kube2sky} Normal Created Created container with docker id 6617ecebd123; Security:[seccomp=unconfined]
4m 4m 1 {kubelet k8s-node2} spec.containers{kube2sky} Normal Started Started container with docker id 6617ecebd123
4m 4m 1 {kubelet k8s-node2} spec.containers{skydns} Normal Pulling pulling image "10.156.50.35:5000/skydns"
4m 4m 1 {kubelet k8s-node2} spec.containers{skydns} Normal Pulled Successfully pulled image "10.156.50.35:5000/skydns"
4m 4m 1 {kubelet k8s-node2} spec.containers{skydns} Normal Created Created container with docker id a6d6de9e87cf; Security:[seccomp=unconfined]
4m 4m 1 {kubelet k8s-node2} spec.containers{skydns} Normal Started Started container with docker id a6d6de9e87cf
[root@yanfabu2-35 yaml]# kubectl get svc -l app=kube-dns
NAME CLUSTER-IP EXTERNAL-IP PORT(S) AGE
kube-dns 10.254.254.254 <none> 53/UDP,53/TCP 6m
修改 kubelet 启动参数
--cluster-dns=10.254.254.254 --cluster-domain=cluster.local
systemctl restart kubelet kube-proxy
kubectl delete pods kube-dns-0r0cg --grace-period=0 --force
[root@yanfabu2-35 yaml]# kubectl get pods
NAME READY STATUS RESTARTS AGE
kube-dns-0r0cg 4/4 Unknown 0 1h
kube-dns-bg8xd 4/4 Running 0 36m
redis 1/1 Running 0 13d
springbootdemo-rc-gdtgt 1/1 Running 0 5m
springbootdemo-rc-jc3jv 1/1 Running 0 5m
[root@yanfabu2-35 yaml]#
[root@yanfabu2-35 yaml]#
[root@yanfabu2-35 yaml]#
[root@yanfabu2-35 yaml]#
[root@yanfabu2-35 yaml]# kubectl logs springbootdemo-rc-gdtgt
. ____ _ __ _ _
/\\ / ___'_ __ _ _(_)_ __ __ _ \ \ \ \
( ( )\___ | '_ | '_| | '_ \/ _` | \ \ \ \
\\/ ___)| |_)| | | | | || (_| | ) ) ) )
' |____| .__|_| |_|_| |_\__, | / / / /
=========|_|==============|___/=/_/_/_/
:: Spring Boot :: (v1.3.5.RELEASE)
2019-07-24 08:38:04.080 INFO 5 --- [ main] s.d.j.SpringJenkinsDockerApplication : Starting SpringJenkinsDockerApplication v0.0.1-SNAPSHOT on springbootdemo-rc-gdtgt with PID 5 (/app.jar started by root in /)
2019-07-24 08:38:04.085 INFO 5 --- [ main] s.d.j.SpringJenkinsDockerApplication : No active profile set, falling back to default profiles: default
2019-07-24 08:38:04.422 INFO 5 --- [ main] ationConfigEmbeddedWebApplicationContext : Refreshing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@14b38b37: startup date [Wed Jul 24 08:38:04 GMT 2019]; root of context hierarchy
2019-07-24 08:38:10.861 INFO 5 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat initialized with port(s): 7071 (http)
2019-07-24 08:38:10.935 INFO 5 --- [ main] o.apache.catalina.core.StandardService : Starting service Tomcat
2019-07-24 08:38:10.938 INFO 5 --- [ main] org.apache.catalina.core.StandardEngine : Starting Servlet Engine: Apache Tomcat/8.0.33
2019-07-24 08:38:13.906 INFO 5 --- [ost-startStop-1] org.apache.jasper.servlet.TldScanner : At least one JAR was scanned for TLDs yet contained no TLDs. Enable debug logging for this logger for a complete list of JARs that were scanned but no TLDs were found in them. Skipping unneeded JARs during scanning can improve startup time and JSP compilation time.
2019-07-24 08:38:14.664 INFO 5 --- [ost-startStop-1] o.a.c.c.C.[Tomcat].[localhost].[/] : Initializing Spring embedded WebApplicationContext
2019-07-24 08:38:14.665 INFO 5 --- [ost-startStop-1] o.s.web.context.ContextLoader : Root WebApplicationContext: initialization completed in 10272 ms
2019-07-24 08:38:15.898 INFO 5 --- [ost-startStop-1] o.s.b.c.e.ServletRegistrationBean : Mapping servlet: 'dispatcherServlet' to [/]
2019-07-24 08:38:15.904 INFO 5 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'characterEncodingFilter' to: [/*]
2019-07-24 08:38:15.905 INFO 5 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'hiddenHttpMethodFilter' to: [/*]
2019-07-24 08:38:15.905 INFO 5 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'httpPutFormContentFilter' to: [/*]
2019-07-24 08:38:15.905 INFO 5 --- [ost-startStop-1] o.s.b.c.embedded.FilterRegistrationBean : Mapping filter: 'requestContextFilter' to: [/*]
2019-07-24 08:38:16.904 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerAdapter : Looking for @ControllerAdvice: org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@14b38b37: startup date [Wed Jul 24 08:38:04 GMT 2019]; root of context hierarchy
2019-07-24 08:38:17.303 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello]}" onto public java.lang.String showandshare.docker.jenkinsdockerdemo.controller.HelloController.hello()
2019-07-24 08:38:17.316 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello/test]}" onto public java.util.Map<java.lang.String, java.lang.String> showandshare.docker.jenkinsdockerdemo.controller.HelloController.getInfo(java.lang.String,java.lang.Integer)
2019-07-24 08:38:17.317 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/hello/info]}" onto public java.util.Map<java.lang.String, java.lang.String> showandshare.docker.jenkinsdockerdemo.controller.HelloController.getInfo(java.lang.String)
2019-07-24 08:38:17.349 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error],produces=[text/html]}" onto public org.springframework.web.servlet.ModelAndView org.springframework.boot.autoconfigure.web.BasicErrorController.errorHtml(javax.servlet.http.HttpServletRequest,javax.servlet.http.HttpServletResponse)
2019-07-24 08:38:17.359 INFO 5 --- [ main] s.w.s.m.m.a.RequestMappingHandlerMapping : Mapped "{[/error]}" onto public org.springframework.http.ResponseEntity<java.util.Map<java.lang.String, java.lang.Object>> org.springframework.boot.autoconfigure.web.BasicErrorController.error(javax.servlet.http.HttpServletRequest)
2019-07-24 08:38:18.754 INFO 5 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/webjars/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 08:38:18.755 INFO 5 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 08:38:19.020 INFO 5 --- [ main] o.s.w.s.handler.SimpleUrlHandlerMapping : Mapped URL path [/**/favicon.ico] onto handler of type [class org.springframework.web.servlet.resource.ResourceHttpRequestHandler]
2019-07-24 08:38:19.643 INFO 5 --- [ main] o.s.j.e.a.AnnotationMBeanExporter : Registering beans for JMX exposure on startup
2019-07-24 08:38:19.777 INFO 5 --- [ main] s.b.c.e.t.TomcatEmbeddedServletContainer : Tomcat started on port(s): 7071 (http)
2019-07-24 08:38:19.786 INFO 5 --- [ main] s.d.j.SpringJenkinsDockerApplication : Started SpringJenkinsDockerApplication in 17.09 seconds (JVM running for 18.507)
[root@yanfabu2-35 yaml]# kubectl exec -ti springbootdemo-b9wv5 wget localhost:7071/hello
Connecting to localhost:7071 (127.0.0.1:7071)
hello 100% |**********************************************************************************************************************************************| 17 0:00:00 ETA
[root@yanfabu2-35 yaml]# ls
解决
[root@yanfabu2-35 yaml]# kubectl logs kube-dns-x2g2g skydns 2019/07/26 05:50:48 skydns: falling back to default configuration, could not read from etcd: 100: Key not found (/skydns) [1] 2019/07/26 05:50:48 skydns: ready for queries on cluster.local. for tcp://0.0.0.0:53 [rcache 0] 2019/07/26 05:50:48 skydns: ready for queries on cluster.local. for udp://0.0.0.0:53 [rcache 0]
- -nameservers=10.156.89.3:53,10.156.89.4:53 增加 dns 测试环境的dns 解析器
[root@yanfabu2-35 yaml]# kubectl exec -it busybox nslookup yanfabu2-35.base.app.dev.yf Server: 10.254.254.254 Address 1: 10.254.254.254 nslookup: can't resolve 'yanfabu2-35.base.app.dev.yf'
kubectl logs kube-dns-q4nxp skydns
2019/07/26 07:06:34 skydns: falling back to default configuration, could not read from etcd: 501: All the given peers are not reachable (failed to propose on members [http://127.0.0.1:4001] twice [last error: Get http://127.0.0.1:4001/v2/keys/skydns/config?quorum=false&recursive=false&sorted=false: dial tcp 127.0.0.1:4001: connection refused]) [0]
2019/07/26 07:06:34 skydns: ready for queries on cluster.local. for tcp://0.0.0.0:53 [rcache 0]
2019/07/26 07:06:34 skydns: ready for queries on cluster.local. for udp://0.0.0.0:53 [rcache 0]
[root@yanfabu2-35 yaml]# kubectl exec -it busybox nslookup kubernetes
- name: skydns
image: 10.156.50.35:5000/skydns
resources:
limits:
cpu: 100m
memory: 200Mi
requests:
cpu: 100m
memory: 50Mi
args:
- -machines=http://127.0.0.1:2379 #修改为 2379
- -addr=0.0.0.0:53
- -ns-rotate=false
- -domain=cluster.local.
- -nameservers=10.156.89.3:53,10.156.89.4:53
[root@yanfabu2-35 yaml]# kubectl exec -it busybox nslookup springbootdemo Server: 10.254.254.254 Address 1: 10.254.254.254 Name: springbootdemo Address 1: 10.254.196.233 #nslookup 通， ping 不通 / # nslookup springbootdemo Server: 10.254.254.254 Address 1: 10.254.254.254 Name: springbootdemo Address 1: 10.254.196.233 / # ping springbootdemo PING springbootdemo (10.254.196.233): 56 data bytes / # curl http://springbootdemo:30008/hello sh: curl: not found / # wget http://springbootdemo:30008/hello Connecting to springbootdemo:30008 (10.254.196.233:30008) wget: can't connect to remote host (10.254.196.233): Connection timed out
num target prot opt source destination 1 REJECT tcp -- anywhere 10.254.59.83 /* kubernetes-dashboard/dashboard-metrics-scraper: has no endpoints */ tcp dpt:irdmi reject-with icmp-port-unreachable 2 REJECT tcp -- anywhere 10.254.121.193 /* default/springbootdemo: has no endpoints */ tcp dpt:30008 reject-with icmp-port-unreachable 3 REJECT tcp -- anywhere 10.254.1.134 /* default/mysql-service: has no endpoints */ tcp dpt:mysql reject-with icmp-port-unreachable 4 REJECT tcp -- anywhere 10.254.147.165 /* kubernetes-dashboard/kubernetes-dashboard: has no endpoints */ tcp dpt:https reject-with icmp-port-unreachable Chain KUBE-FIREWALL (2 references) num target prot opt source destination 1 DROP all -- anywhere anywhere /* kubernetes firewall for dropping marked packets */ mark match 0x8000/0x8000 Chain KUBE-SERVICES (1 references) num target prot opt source destination 1 REJECT tcp -- anywhere 10.254.1.134 /* default/mysql-service: has no endpoints */ tcp dpt:mysql reject-with icmp-port-unreachable 2 REJECT tcp -- anywhere 10.254.121.193 /* default/springbootdemo: has no endpoints */ tcp dpt:30008 reject-with icmp-port-unreachable 3 REJECT tcp -- anywhere 10.254.147.165 /* kubernetes-dashboard/kubernetes-dashboard: has no endpoints */ tcp dpt:https reject-with icmp-port-unreachable 4 REJECT tcp -- anywhere 10.254.59.83 /* kubernetes-dashboard/dashboard-metrics-scraper: has no endpoints */ tcp dpt:irdmi reject-with icmp-port-unreachable 修改selector 中 app 为 name 保持一致性
[root@yanfabu2-35 yaml]# cat springbootdemo-rc.yaml
apiVersion: v1
kind: ReplicationController
metadata:
name: springbootdemo
labels:
name: springbootdemo
spec:
replicas: 2
selector:
name: springbootdemo
template:
metadata:
labels:
name: springbootdemo
spec:
containers:
- name: springbootdemo
image: springbootdemo:lasted
ports:
- containerPort: 7071
protocol: TCP
imagePullPolicy: IfNotPresent
[root@yanfabu2-35 yaml]# cat springbootdemo-svc.yaml
apiVersion: v1
kind: Service
metadata:
name: springbootdemo
labels:
name: springbootdemo
spec:
type: NodePort
ports:
- port: 30008
targetPort: 7071
protocol: TCP
nodePort: 30008
selector:
name: springbootdemo
vim defaultbackend.yaml
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: default-http-backend
labels:
k8s-app: default-http-backend
namespace: default
spec:
replicas: 1
template:
metadata:
labels:
k8s-app: default-http-backend
spec:
terminationGracePeriodSeconds: 60
containers:
- name: default-http-backend
image: 192.168.206.243:5000/defaultbackend
livenessProbe:
httpGet:
path: /healthz
port: 8080
scheme: HTTP
initialDelaySeconds: 30
timeoutSeconds: 5
ports:
- containerPort: 8080
resources:
limits:
cpu: 10m
memory: 20Mi
requests:
cpu: 10m
memory: 20Mi
---
apiVersion: v1
kind: Service
metadata:
name: default-http-backend
namespace: default
labels:
k8s-app: default-http-backend
spec:
ports:
- port: 80
targetPort: 8080
selector:
k8s-app: default-http-backend
vim nginx-ingress-controller.yaml
apiVersion: v1
kind: ReplicationController
metadata:
name: nginx-ingress-lb
labels:
name: nginx-ingress-lb
namespace: default
spec:
replicas: 1
template:
metadata:
labels:
name: nginx-ingress-lb
annotations:
prometheus.io/port: '10254'
prometheus.io/scrape: 'true'
spec:
terminationGracePeriodSeconds: 60
hostNetwork: true
containers:
- image: 192.168.206.243:5000/nginx-ingress-controller
name: nginx-ingress-lb
readinessProbe:
httpGet:
path: /healthz
port: 10254
scheme: HTTP
livenessProbe:
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 10
timeoutSeconds: 1
ports:
- containerPort: 80
hostPort: 80
- containerPort: 443
hostPort: 443
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: KUBERNETES_MASTER
value: http://192.168.206.243:8080
args:
- /nginx-ingress-controller
- --default-backend-service=$(POD_NAMESPACE)/default-http-backend
- --apiserver-host=http://192.168.206.243:8080
springbootdemo-ingress.yaml
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: springbootdemo-ingress
namespace: default
spec:
rules:
- host: springbootdemo
http:
paths:
- path: /
backend:
serviceName: springbootdemo
servicePort: 30000
kubectl get ingress -o wide
kubectl exec -it nginx-ingress-controller-5b79cbb5c6-2zr7f sh
cat /etc/nginx/nginx.conf
# Configuration checksum: 10355849410420420293
# setup custom paths that do not require root access
pid /tmp/nginx.pid;
load_module /etc/nginx/modules/ngx_http_modsecurity_module.so;
daemon off;
worker_processes 1;
worker_rlimit_nofile 1047552;
worker_shutdown_timeout 10s ;
events {
multi_accept on;
worker_connections 16384;
use epoll;
}
http {
lua_package_cpath "/usr/local/lib/lua/?.so;/usr/lib/lua-platform-path/lua/5.1/?.so;;";
lua_package_path "/etc/nginx/lua/?.lua;/etc/nginx/lua/vendor/?.lua;/usr/local/lib/lua/?.lua;;";
lua_shared_dict configuration_data 5M;
lua_shared_dict certificate_data 16M;
lua_shared_dict locks 512k;
lua_shared_dict sticky_sessions 1M;
init_by_lua_block {
require("resty.core")
collectgarbage("collect")
local lua_resty_waf = require("resty.waf")
lua_resty_waf.init()
-- init modules
local ok, res
ok, res = pcall(require, "configuration")
if not ok then
error("require failed: " .. tostring(res))
else
configuration = res
configuration.nameservers = { "192.168.206.2" }
end
ok, res = pcall(require, "balancer")
if not ok then
error("require failed: " .. tostring(res))
else
balancer = res
end
ok, res = pcall(require, "monitor")
if not ok then
error("require failed: " .. tostring(res))
else
monitor = res
end
}
init_worker_by_lua_block {
balancer.init_worker()
monitor.init_worker()
}
real_ip_header X-Forwarded-For;
real_ip_recursive on;
set_real_ip_from 0.0.0.0/0;
geoip_country /etc/nginx/geoip/GeoIP.dat;
geoip_city /etc/nginx/geoip/GeoLiteCity.dat;
geoip_org /etc/nginx/geoip/GeoIPASNum.dat;
geoip_proxy_recursive on;
aio threads;
aio_write on;
tcp_nopush on;
tcp_nodelay on;
log_subrequest on;
reset_timedout_connection on;
keepalive_timeout 75s;
keepalive_requests 100;
client_body_temp_path /tmp/client-body;
fastcgi_temp_path /tmp/fastcgi-temp;
proxy_temp_path /tmp/proxy-temp;
ajp_temp_path /tmp/ajp-temp;
client_header_buffer_size 1k;
client_header_timeout 60s;
large_client_header_buffers 4 8k;
client_body_buffer_size 8k;
client_body_timeout 60s;
http2_max_field_size 4k;
http2_max_header_size 16k;
http2_max_requests 1000;
types_hash_max_size 2048;
server_names_hash_max_size 1024;
server_names_hash_bucket_size 32;
map_hash_bucket_size 64;
proxy_headers_hash_max_size 512;
proxy_headers_hash_bucket_size 64;
variables_hash_bucket_size 128;
variables_hash_max_size 2048;
underscores_in_headers off;
ignore_invalid_headers on;
limit_req_status 503;
include /etc/nginx/mime.types;
default_type text/html;
gzip on;
gzip_comp_level 5;
gzip_http_version 1.1;
gzip_min_length 256;
gzip_types application/atom+xml application/javascript application/x-javascript application/json application/rss+xml application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/svg+xml image/x-icon text/css text/plain text/x-component;
gzip_proxied any;
gzip_vary on;
# Custom headers for response
server_tokens on;
# disable warnings
uninitialized_variable_warn off;
# Additional available variables:
# $namespace
# $ingress_name
# $service_name
# $service_port
log_format upstreaminfo '$the_real_ip - [$the_real_ip] - $remote_user [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent" $request_length $request_time [$proxy_upstream_name] $upstream_addr $upstream_response_length $upstream_response_time $upstream_status $req_id';
map $request_uri $loggable {
default 1;
}
access_log /var/log/nginx/access.log upstreaminfo if=$loggable;
error_log /var/log/nginx/error.log notice;
resolver 192.168.206.2 valid=30s;
# See https://www.nginx.com/blog/websocket-nginx
map $http_upgrade $connection_upgrade {
default upgrade;
# See http://nginx.org/en/docs/http/ngx_http_upstream_module.html#keepalive
'' '';
}
# The following is a sneaky way to do "set $the_real_ip $remote_addr"
# Needed because using set is not allowed outside server blocks.
map '' $the_real_ip {
default $remote_addr;
}
# trust http_x_forwarded_proto headers correctly indicate ssl offloading
map $http_x_forwarded_proto $pass_access_scheme {
default $http_x_forwarded_proto;
'' $scheme;
}
map $http_x_forwarded_port $pass_server_port {
default $http_x_forwarded_port;
'' $server_port;
}
# Obtain best http host
map $http_host $this_host {
default $http_host;
'' $host;
}
map $http_x_forwarded_host $best_http_host {
default $http_x_forwarded_host;
'' $this_host;
}
# validate $pass_access_scheme and $scheme are http to force a redirect
map "$scheme:$pass_access_scheme" $redirect_to_https {
default 0;
"http:http" 1;
"https:http" 1;
}
map $pass_server_port $pass_port {
443 443;
default $pass_server_port;
}
# Reverse proxies can detect if a client provides a X-Request-ID header, and pass it on to the backend server.
# If no such header is provided, it can provide a random value.
map $http_x_request_id $req_id {
default $http_x_request_id;
"" $request_id;
}
# Create a variable that contains the literal $ character.
# This works because the geo module will not resolve variables.
geo $literal_dollar {
default "$";
}
server_name_in_redirect off;
port_in_redirect off;
ssl_protocols TLSv1.2;
# turn on session caching to drastically improve performance
ssl_session_cache builtin:1000 shared:SSL:10m;
ssl_session_timeout 10m;
# allow configuring ssl session tickets
ssl_session_tickets on;
# slightly reduce the time-to-first-byte
ssl_buffer_size 4k;
# allow configuring custom ssl ciphers
ssl_ciphers 'ECDHE-ECDSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-CHACHA20-POLY1305:ECDHE-RSA-CHACHA20-POLY1305:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA256';
ssl_prefer_server_ciphers on;
ssl_ecdh_curve auto;
proxy_ssl_session_reuse on;
upstream upstream_balancer {
server 0.0.0.1; # placeholder
balancer_by_lua_block {
balancer.balance()
}
keepalive 32;
keepalive_timeout 60s;
keepalive_requests 100;
}
# Global filters
## start server _
server {
server_name _ ;
listen 80 default_server reuseport backlog=511;
listen [::]:80 default_server reuseport backlog=511;
set $proxy_upstream_name "-";
listen 443 default_server reuseport backlog=511 ssl http2;
listen [::]:443 default_server reuseport backlog=511 ssl http2;
# PEM sha: 7e07077985f304dc830f1cd7d4d741fffaf6fef7
ssl_certificate /etc/ingress-controller/ssl/default-fake-certificate.pem;
ssl_certificate_key /etc/ingress-controller/ssl/default-fake-certificate.pem;
location / {
set $namespace "";
set $ingress_name "";
set $service_name "";
set $service_port "0";
set $location_path "/";
rewrite_by_lua_block {
balancer.rewrite()
}
access_by_lua_block {
}
header_filter_by_lua_block {
}
body_filter_by_lua_block {
}
log_by_lua_block {
balancer.log()
monitor.call()
}
if ($scheme = https) {
more_set_headers "Strict-Transport-Security: max-age=15724800; includeSubDomains";
}
access_log off;
port_in_redirect off;
set $proxy_upstream_name "upstream-default-backend";
client_max_body_size 1m;
proxy_set_header Host $best_http_host;
# Pass the extracted client certificate to the backend
# Allow websocket connections
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header X-Request-ID $req_id;
proxy_set_header X-Real-IP $the_real_ip;
proxy_set_header X-Forwarded-For $the_real_ip;
proxy_set_header X-Forwarded-Host $best_http_host;
proxy_set_header X-Forwarded-Port $pass_port;
proxy_set_header X-Forwarded-Proto $pass_access_scheme;
proxy_set_header X-Original-URI $request_uri;
proxy_set_header X-Scheme $pass_access_scheme;
# Pass the original X-Forwarded-For
proxy_set_header X-Original-Forwarded-For $http_x_forwarded_for;
# mitigate HTTPoxy Vulnerability
# https://www.nginx.com/blog/mitigating-the-httpoxy-vulnerability-with-nginx/
proxy_set_header Proxy "";
# Custom headers to proxied server
proxy_connect_timeout 5s;
proxy_send_timeout 60s;
proxy_read_timeout 60s;
proxy_buffering off;
proxy_buffer_size 4k;
proxy_buffers 4 4k;
proxy_request_buffering on;
proxy_http_version 1.1;
proxy_cookie_domain off;
proxy_cookie_path off;
# In case of errors try the next upstream server before returning an error
proxy_next_upstream error timeout;
proxy_next_upstream_tries 3;
proxy_pass http://upstream_balancer;
proxy_redirect off;
}
# health checks in cloud providers require the use of port 80
location /healthz {
access_log off;
return 200;
}
# this is required to avoid error if nginx is being monitored
# with an external software (like sysdig)
location /nginx_status {
allow 127.0.0.1;
allow ::1;
deny all;
access_log off;
stub_status on;
}
}
## end server _
## start server springbootdemo
server {
server_name springbootdemo ;
listen 80;
listen [::]:80;
set $proxy_upstream_name "-";
location / {
set $namespace "default";
set $ingress_name "springbootdemo-ingress";
set $service_name "springbootdemo";
set $service_port "7071";
set $location_path "/";
rewrite_by_lua_block {
balancer.rewrite()
}
access_by_lua_block {
}
header_filter_by_lua_block {
}
body_filter_by_lua_block {
}
log_by_lua_block {
balancer.log()
monitor.call()
}
port_in_redirect off;
set $proxy_upstream_name "default-springbootdemo-7071";
client_max_body_size 1m;
proxy_set_header Host $best_http_host;
# Pass the extracted client certificate to the backend
# Allow websocket connections
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header X-Request-ID $req_id;
proxy_set_header X-Real-IP $the_real_ip;
proxy_set_header X-Forwarded-For $the_real_ip;
proxy_set_header X-Forwarded-Host $best_http_host;
proxy_set_header X-Forwarded-Port $pass_port;
proxy_set_header X-Forwarded-Proto $pass_access_scheme;
proxy_set_header X-Original-URI $request_uri;
proxy_set_header X-Scheme $pass_access_scheme;
# Pass the original X-Forwarded-For
proxy_set_header X-Original-Forwarded-For $http_x_forwarded_for;
# mitigate HTTPoxy Vulnerability
# https://www.nginx.com/blog/mitigating-the-httpoxy-vulnerability-with-nginx/
proxy_set_header Proxy "";
# Custom headers to proxied server
proxy_connect_timeout 5s;
proxy_send_timeout 60s;
proxy_read_timeout 60s;
proxy_buffering off;
proxy_buffer_size 4k;
proxy_buffers 4 4k;
proxy_request_buffering on;
proxy_http_version 1.1;
proxy_cookie_domain off;
proxy_cookie_path off;
# In case of errors try the next upstream server before returning an error
proxy_next_upstream error timeout;
proxy_next_upstream_tries 3;
proxy_pass http://upstream_balancer;
proxy_redirect off;
}
}
## end server springbootdemo
# backend for when default-backend-service is not configured or it does not have endpoints
server {
listen 8181 default_server reuseport backlog=511;
listen [::]:8181 default_server reuseport backlog=511;
set $proxy_upstream_name "-";
location / {
return 404;
}
}
# default server, used for NGINX healthcheck and access to nginx stats
server {
listen 18080 default_server reuseport backlog=511;
listen [::]:18080 default_server reuseport backlog=511;
set $proxy_upstream_name "-";
location /healthz {
access_log off;
return 200;
}
location /is-dynamic-lb-initialized {
access_log off;
content_by_lua_block {
local configuration = require("configuration")
local backend_data = configuration.get_backends_data()
if not backend_data then
ngx.exit(ngx.HTTP_INTERNAL_SERVER_ERROR)
return
end
ngx.say("OK")
ngx.exit(ngx.HTTP_OK)
}
}
location /nginx_status {
set $proxy_upstream_name "internal";
access_log off;
stub_status on;
}
location /configuration {
access_log off;
allow 127.0.0.1;
allow ::1;
deny all;
# this should be equals to configuration_data dict
client_max_body_size 10m;
client_body_buffer_size 10m;
proxy_buffering off;
content_by_lua_block {
configuration.call()
}
}
location / {
set $proxy_upstream_name "upstream-default-backend";
proxy_set_header Host $best_http_host;
proxy_pass http://upstream_balancer;
}
}
}
stream {
lua_package_cpath "/usr/local/lib/lua/?.so;/usr/lib/lua-platform-path/lua/5.1/?.so;;";
lua_package_path "/etc/nginx/lua/?.lua;/etc/nginx/lua/vendor/?.lua;/usr/local/lib/lua/?.lua;;";
lua_shared_dict tcp_udp_configuration_data 5M;
init_by_lua_block {
require("resty.core")
collectgarbage("collect")
-- init modules
local ok, res
ok, res = pcall(require, "tcp_udp_configuration")
if not ok then
error("require failed: " .. tostring(res))
else
tcp_udp_configuration = res
tcp_udp_configuration.nameservers = { "192.168.206.2" }
end
ok, res = pcall(require, "tcp_udp_balancer")
if not ok then
error("require failed: " .. tostring(res))
else
tcp_udp_balancer = res
end
}
init_worker_by_lua_block {
tcp_udp_balancer.init_worker()
}
lua_add_variable $proxy_upstream_name;
log_format log_stream [$time_local] $protocol $status $bytes_sent $bytes_received $session_time;
access_log /var/log/nginx/access.log log_stream;
error_log /var/log/nginx/error.log;
upstream upstream_balancer {
server 0.0.0.1:1234; # placeholder
balancer_by_lua_block {
tcp_udp_balancer.balance()
}
}
server {
listen unix:/tmp/ingress-stream.sock;
content_by_lua_block {
tcp_udp_configuration.call()
}
}
# TCP services
# UDP services
}
捐助开发者
在兴趣的驱动下,写一个免费的东西，有欣喜，也还有汗水，希望你喜欢我的作品，同时也能支持一下。 当然，有钱捧个钱场（支持支付宝和微信 以及扣扣群），没钱捧个人场，谢谢各位。
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