制作kubectl自定义镜像

Dockerfile

FROM alpine:3.15.0
COPY config /root/.kube/config
COPY kubectl /bin/

build：

/bin/cp -arf /usr/bin/kubectl .
/bin/cp -arf /root/.kube/config .
docker build -t kubectl:1.23.3-0.x86_64 .

test:

[root@node01 kubectl]# docker run --rm kubectl:1.23.3-0.x86_64 kubectl get nodes
NAME     STATUS                     ROLES                  AGE    VERSION
master   Ready,SchedulingDisabled   control-plane,master   147d   v1.23.3
n1       Ready                      <none>                 45d    v1.23.1
node01   Ready                      <none>                 147d   v1.23.3
node02   Ready                      <none>                 94d    v1.23.3
You have mail in /var/spool/mail/root

用于Drone部署：

  - name: deploy
    image: kubectl:1.23.3-0.x86_64
    commands:
      - kubectl set image deployments testdp testct=testimg:${DRONE_BUILD_NUMBER} -n myns