137 lines
3.2 KiB
Markdown
137 lines
3.2 KiB
Markdown
# Digital Ocean and Docker
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## Initial setup
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In this guide you'll configure a Digital Ocean droplet and set up Docker
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locally on either macOS or Linux.
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### On macOS
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#### Install Docker Toolbox
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1. [https://www.docker.com/products/docker-toolbox](https://www.docker.com/products/docker-toolbox)
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### On Linux
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#### Install Docker Engine
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1. [https://docs.docker.com/engine/installation/linux](https://docs.docker.com/engine/installation/linux/)
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#### Install Docker Machine
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1. [https://docs.docker.com/machine/install-machine](https://docs.docker.com/machine/install-machine/)
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_The rest of the steps are identical for macOS and Linux_
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### Create new docker host
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1. Login to Digital Ocean
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1. Generate a new API token at https://cloud.digitalocean.com/settings/api/tokens
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This command will create a new DO droplet called `gitlab-test-env-do` that will act as a docker host.
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**Note: 4GB is the minimum requirement for a Docker host that will run more then one GitLab instance**
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+ RAM: 4GB
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+ Name: `gitlab-test-env-do`
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+ Driver: `digitalocean`
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**Set the DO token** - Replace the string below with your generated token
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```
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export DOTOKEN=cf3dfd0662933203005c4a73396214b7879d70aabc6352573fe178d340a80248
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```
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**Create the machine**
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```
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docker-machine create \
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--driver digitalocean \
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--digitalocean-access-token=$DOTOKEN \
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--digitalocean-size "4gb" \
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gitlab-test-env-do
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```
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+ Resource: https://docs.docker.com/machine/drivers/digital-ocean/
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### Creating GitLab test instance
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#### Connect your shell to the new machine
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In this example we'll create a GitLab EE 8.10.8 instance.
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First connect the docker client to the docker host you created previously.
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```
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eval "$(docker-machine env gitlab-test-env-do)"
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```
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You can add this to your `~/.bash_profile` file to ensure the `docker` client uses the `gitlab-test-env-do` docker host
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#### Create new GitLab container
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+ HTTP port: `8888`
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+ SSH port: `2222`
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+ Set `gitlab_shell_ssh_port` using `--env GITLAB_OMNIBUS_CONFIG `
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+ Hostname: IP of docker host
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+ Container name: `gitlab-test-8.10`
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+ GitLab version: **EE** `8.10.8-ee.0`
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##### Setup container settings
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```
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export SSH_PORT=2222
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export HTTP_PORT=8888
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export VERSION=8.10.8-ee.0
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export NAME=gitlab-test-8.10
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```
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##### Create container
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```
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docker run --detach \
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--env GITLAB_OMNIBUS_CONFIG="external_url 'http://$(docker-machine ip gitlab-test-env-do):$HTTP_PORT'; gitlab_rails['gitlab_shell_ssh_port'] = $SSH_PORT;" \
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--hostname $(docker-machine ip gitlab-test-env-do) \
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-p $HTTP_PORT:$HTTP_PORT -p $SSH_PORT:22 \
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--name $NAME \
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gitlab/gitlab-ee:$VERSION
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```
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#### Connect to the GitLab container
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##### Retrieve the docker host IP
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```
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docker-machine ip gitlab-test-env-do
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# example output: 192.168.151.134
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```
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+ Browse to: http://192.168.151.134:8888/
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##### Execute interactive shell/edit configuration
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```
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docker exec -it $NAME /bin/bash
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```
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```
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# example commands
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root@192:/# vi /etc/gitlab/gitlab.rb
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root@192:/# gitlab-ctl reconfigure
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```
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#### Resources
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+ [https://docs.gitlab.com/omnibus/docker/](https://docs.gitlab.com/omnibus/docker/)
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+ [https://docs.docker.com/machine/get-started/](https://docs.docker.com/machine/get-started/)
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+ [https://docs.docker.com/machine/reference/ip/](https://docs.docker.com/machine/reference/ip/)+
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