使用apk add ansible即可在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

Dockerfile

在Dockerfile中添加上面的语句：

#update apk for installRUN apk update#install ansible and opensshRUN apk add ansible openssh#init ansible hosts fileRUN mkdir -p /etc/ansibleRUN echo "localhost" >/etc/ansible/hosts#init rsa ssh key pairRUN 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/ansibleUsing default tag: latestTrying to pull repository docker.io/liumiaocn/ansible ... latest: Pulling from docker.io/liumiaocn/ansibleff3a5c916c92: Already exists 42a81541f983: Pull complete 86602ac17bcb: Pull complete 73cb14e49a3f: Pull complete bdfcad59d746: Pull complete 455ffeaa5bf1: Pull complete dff32643cfa5: Pull complete Digest: sha256:46284f3d3b9e3880f9b65fa6b1fb225b19bc88222badf74aa85936aabc24090fStatus: Downloaded newer image for docker.io/liumiaocn/ansible:latest[root@occluster ~]# [root@occluster ~]# docker images |grep ansibledocker.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 --versionansible 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(192.168.163.172)进行沟通，事先设定ssh通路，可以使用ssh-copy-id

/ # ssh-copy-id 192.168.163.172/usr/bin/ssh-copy-id: INFO: Source of key(s) to be installed: "/root/.ssh/id_rsa.pub"The authenticity of host '192.168.163.172 (192.168.163.172)' 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 installedexpr: warning: '^ERROR: ': using '^' as the first characterof 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 keysroot@192.168.163.172's password: Number of key(s) added: 1Now try logging into the machine, with: "ssh '192.168.163.172'"and check to make sure that only the key(s) you wanted were added./ #

ssh通路确认

/ # ssh 192.168.163.172 hostnameoccluster/ #

ansible动作确认

/ # echo "192.168.163.172" >>/etc/ansible/hosts/ # ansible 192.168.163.172 -m ping192.168.163.172 | SUCCESS => { "changed": false, "failed": false, "ping": "pong"}/ #

总结

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