Docker中的Salt-master和Salt-Minion连接问题

如何解决Docker中的Salt-master和Salt-Minion连接问题

在最新版本的ubuntu中连接salt-master和salt-minion时遇到问题。 https://bitbucket.org/jmarhee/saltstack-docker/src 我使用了此参考，但是由于它使用的是旧版本的ubuntu，因此我在docker build文件中更新了ubuntu。但是在更新ubuntu版本后，它不会与salt-master连接。

下面是文件。预先感谢。

salt_master_docker_file

FROM ubuntu:latest
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y wget gnupg
RUN wget -O - https://repo.saltstack.com/py3/ubuntu/20.04/amd64/3001/SALTSTACK-GPG-KEY.pub | apt-key add -
RUN echo "deb http://repo.saltstack.com/py3/ubuntu/20.04/amd64/latest focal main" | tee -a /etc/apt/sources.list.d/saltstack.list
RUN apt-get update
RUN apt-get install -y salt-master


EXPOSE 4505 4506

COPY setup.sh /opt/setup.sh

ENTRYPOINT ["sh","/opt/setup.sh"]
CMD []

salt_master_setup.sh

#!/bin/bash

key_checker () {

        x=1
        while [ $x -le 250 ]
                do
                salt-key -A -y
                x=$(( $x + 1 ))
                sleep 1
        done
        echo "All available keys accepted." && salt "*" test.ping && \
        touch /var/log/salt/master && \
        tail -f /var/log/salt/master

}

service salt-master start && key_checker

salt_minion_Docker_file

FROM ubuntu:latest
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get install -y wget gnupg
RUN wget -O - https://repo.saltstack.com/py3/ubuntu/20.04/amd64/3001/SALTSTACK-GPG-KEY.pub | apt-key add -
RUN echo "deb http://repo.saltstack.com/py3/ubuntu/20.04/amd64/latest focal main" | tee -a /etc/apt/sources.list.d/saltstack.list
RUN apt-get update
RUN apt-get install -y salt-minion curl


COPY setup.sh /opt/setup.sh

ENTRYPOINT ["sh","/opt/setup.sh"]
CMD []

salt_minion_setup.sh

#!/bin/bash

salt_minion_check () {
        if [ ! -f /var/log/salt/minion ]; then
          echo "File not found!" && \
          touch /var/log/salt/minion && \
          salt_minion_check
        else
          tail -f /var/log/salt/minion
        fi
}

echo "master: master_1" >> /etc/salt/minion && \
echo "id: salt-minion-$(hostname)" >> /etc/salt/minion

service salt-minion start && \
salt_minion_check

主要docker-compose-file

version: '3'
services:
  minion:
    image: salt-minion
    links:
      - master
    depends_on:
      - master
    networks:
      saltnetwork:
        aliases:
          - minion


  master:
    image: salt-master
    networks:
      saltnetwork:
        aliases:
          - master

networks:
  saltnetwork:
    driver: bridge

解决方法

根据Saltstack文档，有一种方法可以在母版上preseed keys以避免交互接受。

如果您想做的是用docker-compose造一个Salt大师和一个奴才，那么下面的内容就足够了。

在Docker主机上生成salt-key。这将生成minion1.pub和minion1.pem。

salt-key --gen-keys=minion1

然后，我们将在Dockerfile中使用相应的公钥和私钥。示例盐大师 Dockerfile：

FROM ubuntu:focal
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get -y install gnupg
COPY SALTSTACK-GPG-KEY.pub /tmp/SALTSTACK-GPG-KEY.pub
COPY saltstack.list /etc/apt/sources.list.d/saltstack.list
RUN apt-key add /tmp/SALTSTACK-GPG-KEY.pub
RUN apt-get update && apt-get install -y salt-master
COPY minion1.pub /etc/salt/pki/master/minions/minion1

示例盐小兵 Dockerfile：

FROM ubuntu:focal
ENV DEBIAN_FRONTEND=noninteractive
RUN apt-get update && apt-get -y install gnupg
COPY SALTSTACK-GPG-KEY.pub /tmp/SALTSTACK-GPG-KEY.pub
COPY saltstack.list /etc/apt/sources.list.d/saltstack.list
RUN apt-key add /tmp/SALTSTACK-GPG-KEY.pub
RUN apt-get update && apt-get install -y salt-minion

COPY minion1.pem /etc/salt/pki/minion/minion.pem
COPY minion1.pub /etc/salt/pki/minion/minion.pub
COPY id.conf /etc/salt/minion.d/id.conf

上面的id.conf很简单：

id: minion1

默认情况下，Salt小兵会寻找salt主机名。如果解析为Salt母版，则使用它。因此，我们可以在docker-compose.yml文件中使用它。

version: '3'

services:
  minion1:
    image: myminion
    command: salt-minion

  salt:
    image: mymaster
    command: salt-master
    ports:
      - 4505
      - 4506

注意：

当我们使用salt-key -A命令接受一个小仆的密钥时，它会在后台将小仆的公钥从/etc/salt/pki/master/minions_pre/移到主服务器上的/etc/salt/pki/master/minions。