我有Dockerfile:
FROM ubuntu:16.04
ARG ssh_prv_key
ARG ssh_pub_key
RUN apt-get update && \
apt-get install ... USUAL INSTALL STUFF ...
WORKDIR /app/
CMD git clone MY_REPO
我构建这样的图像:
$ docker build -t example --build-arg ssh_prv_key="$(cat ~/.ssh/id_rsa)" --build-arg ssh_pub_key="$(cat ~/.ssh/id_rsa.pub)" .
当我从这个图像创建容器时,它会自动拉取git-repo并使用-v
参数将其保存在主机上,并使用--rm
自我销毁。
当我尝试使用ansible docker_image模块执行相同的操作时,问题就开始了。
playbook看起来像这样:
---
- hosts: localhost
environment:
PYTHONPATH: /usr/local/lib/python2.7/site-packages/
tasks:
- name: create image from Dockerfile
docker_image:
path: /home/demaunt/Jun/dock_click
dockerfile: biba.dockerfile
name: myimage
buildargs:
ssh_pub_key: '{{ pub }}'
ssh_prv_key: '{{ pvt }}'
我这样开始:
ansible-playbook bibansible.yml --extra-vars "pub=$(cat ~/.ssh/id_rsa.pub) pvt=$(cat ~/.ssh/id_rsa)"
图像是成功构建的,但在运行容器时,我得到Permission错误(publickey)。 我也尝试将参数传递给.yml文件,如下所示:
---
- hosts: localhost
environment:
PYTHONPATH: /usr/local/lib/python2.7/site-packages/
tasks:
- name: create image from Dockerfile
docker_image:
path: /home/demaunt/Jun/dock_click
dockerfile: biba.dockerfile
name: myimage
buildargs:
ssh_pub_key:
command: cat ~/.ssh/id_rsa.pub
ssh_prv_key:
command: cat ~/.ssh/id_rsa
P.S。我知道将ssh密钥传递给图像不是最好的选择,但它可以作为临时解决方案。
答案 0 :(得分:1)
您无法在此级别使用command
但要获取本地文件的内容,请查看lookup
[...]
buildargs:
ssh_pub_key: "{{ lookup('file', '~/.ssh/id_rsa.pub') }}"
ssh_prv_key: "{{ lookup('file', '~/.ssh/id_rsa') }}"