1.1 解压安装
hdss7-21
tar -zxvf kubernetes-server-1552linux-amd64.tar.gz -C /opt/
mv kubernetes/ kubernetes-v1.15.2
ln -s kubernetes-v1.15.2/ kubernetes
# 删除源码包
rm -rf /opt/kubernetes/kubernetes-src.tar.gz
# 删除docker镜像
-rwxr-xr-x 1 root root 43534816 Aug 5 2019 apiextensions-apiserver
-rwxr-xr-x 1 root root 100548640 Aug 5 2019 cloud-controller-manager
-rw-r--r-- 1 root root 8 Aug 5 2019 cloud-controller-manager.docker_tag
-rw-r--r-- 1 root root 144437760 Aug 5 2019 cloud-controller-manager.tar
-rwxr-xr-x 1 root root 200648416 Aug 5 2019 hyperkube
-rwxr-xr-x 1 root root 40182208 Aug 5 2019 kubeadm
-rwxr-xr-x 1 root root 164501920 Aug 5 2019 kube-apiserver
-rw-r--r-- 1 root root 8 Aug 5 2019 kube-apiserver.docker_tag
-rw-r--r-- 1 root root 208390656 Aug 5 2019 kube-apiserver.tar
-rwxr-xr-x 1 root root 116397088 Aug 5 2019 kube-controller-manager
-rw-r--r-- 1 root root 8 Aug 5 2019 kube-controller-manager.docker_tag
-rw-r--r-- 1 root root 160286208 Aug 5 2019 kube-controller-manager.tar
-rwxr-xr-x 1 root root 42985504 Aug 5 2019 kubectl
-rwxr-xr-x 1 root root 119616640 Aug 5 2019 kubelet
-rwxr-xr-x 1 root root 36987488 Aug 5 2019 kube-proxy
-rw-r--r-- 1 root root 8 Aug 5 2019 kube-proxy.docker_tag
-rw-r--r-- 1 root root 84282368 Aug 5 2019 kube-proxy.tar
-rwxr-xr-x 1 root root 38786144 Aug 5 2019 kube-scheduler
-rw-r--r-- 1 root root 8 Aug 5 2019 kube-scheduler.docker_tag
-rw-r--r-- 1 root root 82675200 Aug 5 2019 kube-scheduler.tar
-rwxr-xr-x 1 root root 1648224 Aug 5 2019 mounter
[root@hdss7-21 bin]# cd /opt/kubernetes/server/bin/
[root@hdss7-21 bin]# rm -f *.tar
[root@hdss7-21 bin]# rm -f *_tag
[root@hdss7-21 bin]# ll
total 884636
-rwxr-xr-x 1 root root 43534816 Aug 5 2019 apiextensions-apiserver
-rwxr-xr-x 1 root root 100548640 Aug 5 2019 cloud-controller-manager
-rwxr-xr-x 1 root root 200648416 Aug 5 2019 hyperkube
-rwxr-xr-x 1 root root 40182208 Aug 5 2019 kubeadm
-rwxr-xr-x 1 root root 164501920 Aug 5 2019 kube-apiserver
-rwxr-xr-x 1 root root 116397088 Aug 5 2019 kube-controller-manager
-rwxr-xr-x 1 root root 42985504 Aug 5 2019 kubectl
-rwxr-xr-x 1 root root 119616640 Aug 5 2019 kubelet
-rwxr-xr-x 1 root root 36987488 Aug 5 2019 kube-proxy
-rwxr-xr-x 1 root root 38786144 Aug 5 2019 kube-scheduler
-rwxr-xr-x 1 root root 1648224 Aug 5 2019 mounter
1.2 签发证书
hdss7-200
# vi client-csr.json
{
"CN": "k8s-node",
"hosts": [
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "beijing",
"L": "beijing",
"O": "od",
"OU": "ops"
}
]
}
# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client client-csr.json |cfssl-json -bare client
# vi apiserver-csr.json
{
"CN": "k8s-apiserver",
"hosts": [
"127.0.0.1",
"192.168.0.1",
"kubernetes.default",
"kubernetes.default.svc",
"kubernetes.default.svc.cluster",
"kubernetes.default.svc.cluster.local",
"10.4.7.10",
"10.4.7.21",
"10.4.7.22",
"10.4.7.23"
],
"key": {
"algo": "rsa",
"size": 2048
},
"names": [
{
"C": "CN",
"ST": "beijing",
"L": "beijing",
"O": "od",
"OU": "ops"
}
]
}
# cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=server apiserver-csr.json |cfssl-json -bare apiserver
1.3发放证书
hdss7-21
cd /opt/kubernetes/server/bin/cert
scp hdss7-200:/opt/certs/ca.pem .
scp hdss7-200:/opt/certs/ca-key.pem .
scp hdss7-200:/opt/certs/client.pem .
scp hdss7-200:/opt/certs/client-key.pem .
scp hdss7-200:/opt/certs/apiserver.pem .
scp hdss7-200:/opt/certs/apiserver-key.pem .
1.4 kubeServer
1.4.1创建日志审计
bin]# mkdir conf
conf]# vi audit.yaml
apiVersion: audit.k8s.io/v1beta1 # This is required.
kind: Policy
# Don't generate audit events for all requests in RequestReceived stage.
omitStages:
- "RequestReceived"
rules:
# Log pod changes at RequestResponse level
- level: RequestResponse
resources:
- group: ""
# Resource "pods" doesn't match requests to any subresource of pods,
# which is consistent with the RBAC policy.
resources: ["pods"]
# Log "pods/log", "pods/status" at Metadata level
- level: Metadata
resources:
- group: ""
resources: ["pods/log", "pods/status"]
# Don't log requests to a configmap called "controller-leader"
- level: None
resources:
- group: ""
resources: ["configmaps"]
resourceNames: ["controller-leader"]
# Don't log watch requests by the "system:kube-proxy" on endpoints or services
- level: None
users: ["system:kube-proxy"]
verbs: ["watch"]
resources:
- group: "" # core API group
resources: ["endpoints", "services"]
# Don't log authenticated requests to certain non-resource URL paths.
- level: None
userGroups: ["system:authenticated"]
nonResourceURLs:
- "/api*" # Wildcard matching.
- "/version"
# Log the request body of configmap changes in kube-system.
- level: Request
resources:
- group: "" # core API group
resources: ["configmaps"]
# This rule only applies to resources in the "kube-system" namespace.
# The empty string "" can be used to select non-namespaced resources.
namespaces: ["kube-system"]
# Log configmap and secret changes in all other namespaces at the Metadata level.
- level: Metadata
resources:
- group: "" # core API group
resources: ["secrets", "configmaps"]
# Log all other resources in core and extensions at the Request level.
- level: Request
resources:
- group: "" # core API group
- group: "extensions" # Version of group should NOT be included.
# A catch-all rule to log all other requests at the Metadata level.
- level: Metadata
# Long-running requests like watches that fall under this rule will not
# generate an audit event in RequestReceived.
omitStages:
- "RequestReceived"
1.4.2创建启动脚本
vi /opt/kubernetes/server/bin/kube-apiserver.sh
./kube-apiserver \
--apiserver-count 2 \
--audit-log-path /data/logs/kubernetes/kube-apiserver/audit-log \
--audit-policy-file ./conf/audit.yaml \
--authorization-mode RBAC \
--client-ca-file ./cert/ca.pem \
--requestheader-client-ca-file ./cert/ca.pem \
--enable-admission-plugins NamespaceLifecycle,LimitRanger,ServiceAccount,DefaultStorageClass,DefaultTolerationSeconds,MutatingAdmissionWebhook,ValidatingAdmissionWebhook,ResourceQuota \
--etcd-cafile ./cert/ca.pem \
--etcd-certfile ./cert/client.pem \
--etcd-keyfile ./cert/client-key.pem \
--etcd-servers https://10.4.7.12:2379,https://10.4.7.21:2379,https://10.4.7.22:2379 \
--service-account-key-file ./cert/ca-key.pem \
--service-cluster-ip-range 192.168.0.0/16 \
--service-node-port-range 3000-29999 \
--target-ram-mb=1024 \
--kubelet-client-certificate ./cert/client.pem \
--kubelet-client-key ./cert/client-key.pem \
--log-dir /data/logs/kubernetes/kube-apiserver \
--tls-cert-file ./cert/apiserver.pem \
--tls-private-key-file ./cert/apiserver-key.pem \
--v 2
# chmod +x kube-apiserver.sh
1.5创建supervisor启动ini
# vi /etc/supervisord.d/kube-apiserver.ini
[program:kube-apiserver-7-21]
command=/opt/kubernetes/server/bin/kube-apiserver.sh ; the program (relative uses PATH, can take args)
numprocs=1 ; number of processes copies to start (def 1)
directory=/opt/kubernetes/server/bin ; directory to cwd to before exec (def no cwd)
autostart=true ; start at supervisord start (default: true)
autorestart=true ; retstart at unexpected quit (default: true)
startsecs=30 ; number of secs prog must stay running (def. 1)
startretries=3 ; max # of serial start failures (default 3)
exitcodes=0,2 ; 'expected' exit codes for process (default 0,2)
stopsignal=QUIT ; signal used to kill process (default TERM)
stopwaitsecs=10 ; max num secs to wait b4 SIGKILL (default 10)
user=root ; setuid to this UNIX account to run the program
redirect_stderr=true ; redirect proc stderr to stdout (default false)
stdout_logfile=/data/logs/kubernetes/kube-apiserver/apiserver.stdout.log ; stderr log path, NONE for none; default AUTO
stdout_logfile_maxbytes=64MB ; max # logfile bytes b4 rotation (default 50MB)
stdout_logfile_backups=4 ; # of stdout logfile backups (default 10)
stdout_capture_maxbytes=1MB ; number of bytes in 'capturemode' (default 0)
stdout_events_enabled=false ; emit events on stdout writes (default false)
# 创建目录
mkdir -p /data/logs/kubernetes/kube-apiserver
检验
supervisorctl status
[root@hdss7-22 kubernetes]# netstat -luntp | grep kube-api
tcp 0 0 127.0.0.1:8080 0.0.0.0:* LISTEN 1537/./kube-apiserv
tcp6 0 0 :::6443 :::* LISTEN 1537/./kube-apiserv
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