montreal

Set up:

1. Download and install Hashicorp Vagrant.

2. Download and install Oracle VirtualBox

3. Create a script file.

   init.sh

4. Make it executable:

   chmod +x init.sh

5. Execute it:

   ./init.sh

6. Connect by running:

   vagrant ssh

7. Navigate to /workspaces/docker-mgmt/

8. execute "bundle install"

9. If Ubuntu says it has updates run:

   sudo apt-get dist-upgrade

10. The f22deployer user should have been created but a config value needs setting:

    a: Find /etc/ssh/sshd_config

    b: Add the following line:

    AllowUsers f22deployer
    

Lifecyle Plan #1

1st Deploy:

Remove all containers and images

Run docker volume container create script.

Run docker-compose.

nth Redeploy

Data Volumes Reguire No Data Migration:

	Stop and remove docker-compose containers

	Import tarred containers.

	Run docker-compose up.

Data Volumes Reguire Data Migration:

	At PROD: 

		Stop and tar up data volumes.

		Ship back to development

	At DEV: 

		Test/Develop migration scripts against volumes from prod.

		Package Migration Scripts with Deploy Pod.

		Ship Deploy Pod to PROD

	At PROD: 

		Close to public.

		Stop and remove docker-compose containers

		Import Deploy Pod containers.

		Run docker-compose up.

		Run migration script.

		Open to public.

Periodic Maintenance:

Type 1 Backup And Restore:

	Backup

		Stop The Container(s)

		Run Docker Export on containers with 

		Back Up Data Containers

			# See https://docs.docker.com/engine/tutorials/dockervolumes/#backup-restore-or-migrate-data-volumes

			Example:
			docker run --rm --volumes-from dbstore -v $(pwd):/backup ubuntu tar cvf /backup/backup.tar /dbdata

		Copy backup to backup location.

		Re-start container(s)

	Restoring

		Create the new container from the image. Perhaps like so:

			docker run -v /dbdata --name dbstore2 ubuntu /bin/bash

		Execute the restore

			docker run --rm --volumes-from dbstore2 -v $(pwd):/backup ubuntu bash -c "cd /dbdata && tar xvf /backup/backup.tar --strip 1"

Type 2 Backup and Restore:

	Setup: Store volumes on host -- not in containers

	Backup: 

		Turn off consuming guest(s).

		Tar up the folder.

		Restart container

	Restore:

		Stop the container.

		Delete the physical volume

		Recreate the physical volume folder with the backed up one.

Useful docker commands:

Remove all containers:

docker rmi $(docker images -q --filter "dangling=true")

Run a command in a container

sudo docker exec -i -t nginx-f22 /bin/bash