Docker compose for creating localrepo / Offline depedencies centos 7

Case scenario:

If your production environment has no Internet because of regulations, then this better alternative to get depedencies.

This method using docker as repositories downloader, so we can deploy them in other environment without using any internet.

docker volume details:

• home/ -- shared with container /root
• logFile/ -- shared with container /var/log

For start:

Run start-docker.sh

for add more tty to running centos (container):

    docker ps

Then check the current running CONTAINER ID (should with NAMES: docker-centos_centos_1)

    docker exec -ti $CONTAINER_ID /bin/bash

downlad the depedencies:

this git contain example-install.sh file. just move it into home dir and run it inside your container

• you can add more by adding in script file OR
• you can use yumdownloader inside bash container

    mkdir /root/localrepo
    cd /root/localrepo
    yumdownloader --resolve <Package name>

use the localrepo

Assume using root and rpm packages stored in /root/localrepo

Quick: run (it will install everything inside localrepo)

    cd localrepo
    yum install ./*.rpm

OR Create localrepo, so you can select which one will be installed from localrepo

• at host: copy file localrepo.repo to home/
• at container: run

    cp localrepo.repo /etc/yum.repos.d/
    yum --disablerepo=\* --enablerepo=localrepo install <your selected packages>

If get error GPG check failure, just skip the GPG check

    yum --disablerepo=\* --enablerepo=localrepo --nogpgcheck install <your selected packages>

note:

all file generated by container owned by root:root. you can change it via command in your host tty / primary OS

chown -R $USER:$USER home/