stigfromsouth/rocketchat_docker_migrate.md

## rocketchat_docker_migrate.md

      
    Raw
  

              rocketchat_docker_migrate.md
            
          
    Migrate rocketchat docker containers on another server

List our containers on old server

$ docker container list
CONTAINER ID        IMAGE                           COMMAND                  CREATED             STATUS              PORTS                    NAMES
9406c8b05996        rocketchat/rocket.chat:latest   "node main.js"           3 weeks ago         Up 6 hours          0.0.0.0:3000->3000/tcp   rocket_rocketchat_1_b8ee159f80c3
ea0e49de71ce        mongo:3.2                       "docker-entrypoint..."   3 weeks ago         Up 6 hours          27017/tcp                rocket_mongo_1_6ca5fa0882ca

Prepare, save & load images to another server

# Stop the container 
docker stop rocket_rocketchat_1_b8ee159f80c3
docker stop rocket_mongo_1_6ca5fa0882ca

# Commit a container state to a new image
docker commit rocket_rocketchat_1_b8ee159f80c3 rocket_rocketchat_1
docker commit rocket_mongo_1_6ca5fa0882ca rocket_mongo_1

# Save and load image to another host
docker save rocket_rocketchat_1 | ssh belashev@192.201.0.137 docker load
docker save rocket_mongo_1 | ssh belashev@192.201.0.137 docker load

# Save mongo db storage dir and rocketchat upload dir
# (it's directory where lies docker-compose.yml file)
tar -cf ~/Downloads/$(date +\%Y-\%m-\%d)_rocket.tar rocket

# Move mongo db storage dir and rocketchat upload dir
scp 2019-02-25_rocket.tar.gz belashev@192.201.0.137:~/

Check & run our megrated images on new server

belashev at srv137 in ~
$ docker image list
REPOSITORY            TAG                 IMAGE ID            CREATED             SIZE
rocket_mongo_1        latest              c8fc13b28a87        38 minutes ago      300MB
rocket_rocketchat_1   latest              5fd85ebf3f5c        38 minutes ago      1.45GB
hello-world           latest              fce289e99eb9        7 weeks ago         1.84kB

tar -xf 2019-02-25_rocket.tar.gz
cd ~/rocket

# change default rocketchat image names on our new image name
# on next values 
# line7:  rocket_rocketchat_1:latest
# line28: rocket_mongo_1:latest
vim docker-compose.yml

# start containers
docker-compose up -d mongo
docker-compose up -d rocketchat