在alpine镜像中添加ansible服务

添加步骤

在alpine中使用ansible需要如下几步

file

在Dockerfile中添加上面的语句：

#update apk for install  RUN apk update  #install ansible and openssh  RUN apk add ansible openssh  #init ansible hosts file  RUN mkdir -p /etc/ansible  RUN echo "localhost" >/etc/ansible/hosts  #init rsa ssh key pair  RUN ssh-keygen -t rsa -P "" -f ~/.ssh/id_rsa  #delete cache files   RUN rm -rf /var/cache/apk/*

使用镜像

拉取镜像

大概103M左右

[root@occluster ~]# docker pull liumiaocn/ansible  Using default tag: latest  Trying to pull repository docker.io/liumiaocn/ansible ...   latest: Pulling from docker.io/liumiaocn/ansible  ff3a5c916c92: Already exists   42a81541f983: Pull complete   86602ac17bcb: Pull complete   73cb14e49a3f: Pull complete   bdfcad59d746: Pull complete   455ffeaa5bf1: Pull complete   dff32643cfa5: Pull complete   Digest: sha256:46284f3d3b9e3880f9b65fa6b1fb225b19bc88222badf74aa85936aabc24090f  Status: Downloaded newer image for docker.io/liumiaocn/ansible:latest  [root@occluster ~]#   [root@occluster ~]# docker images |grep ansible  docker.io/liumiaocn/ansible         latest       8a5cfdf8243f    Less than a second ago  103 MB  [root@occluster ~]#

使用

进行版本确认

[root@occluster ~]# docker run -it --name ansible liumiaocn/ansible sh  / # ansible --version  ansible 2.4.1.0   config file = None   configured module search path = [u'/root/.ansible/plugins/modules', u'/usr/share/ansible/plugins/modules']   ansible python module location = /usr/lib/python2.7/site-packages/ansible   executable location = /usr/bin/ansible   python version = 2.7.14 (default, Dec 14 2017, 15:51:29) [GCC 6.4.0]  / #

与宿主机(192.166.6.163.172)进行沟通，事先设定ssh通路，可以使用ssh-copy-id

/ # ssh-copy-id 192.166.6.163.172  /usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"  The authenticity of host '192.166.6.163.172 (192.166.6.163.172)' can't be established.  ECDSA key fingerprint is SHA256:uh84Xw56LhiCXb1b0uFbX/CoFhkqHGZjtmLwl3qkTOY.  Are you sure you want to continue connecting (yes/no)? yes  /usr/bin/ssh-copy-id: INFO: attempting to log in with the new key(s), to filter out any that are already installed  expr: warning: '^ERROR: ': using '^' as the first character  of a basic regular expression is not portable; it is ignored  /usr/bin/ssh-copy-id: INFO: 1 key(s) remain to be installed -- if you are prompted now it is to install the new keys  root@192.166.6.163.172's password:   Number of key(s) added: 1  Now try logging into the machine, with:  "ssh '192.166.6.163.172'"  and check to make sure that only the key(s) you wanted were added.  / #

ssh通路确认

/ # ssh 192.166.6.163.172 hostname  occluster  / #

ansible动作确认

/ # echo "192.166.6.163.172" >>/etc/ansible/hosts  / # ansible 192.166.6.163.172 -m ping  192.166.6.163.172 | SUCCESS => {    "changed": false,     "failed": false,     "ping": "pong"  }  / #

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