get started

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Tomasz Borychowski 2020-12-15 16:03:52 +00:00
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# General Information
- [How to setup docker & docker-compose?](docker/setup.md)
- [How to use docker-compose](docker/usage.md)
- [Get started with docker & docker-compose](docker/get-started.md)
- [Troubleshooting](docker/troubleshooting.md)
# Other self-hosted sources

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# Get started with docker & docker-compose
Installation instructions for Ubuntu Linux from: https://docs.docker.com/engine/install/ubuntu/
## Uninstall old versions
```sh
sudo apt-get remove docker docker-engine docker.io containerd runc
```
## Install Docker
```sh
sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
```
## Install `docker-compose`
From: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-compose-on-ubuntu-20-04
```sh
sudo apt-get remove docker-compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
```
## Usage
Full docs are here: https://docs.docker.com/compose/reference/overview/
Generally the idea of `docker-compose` command is simple:
1. First you create a folder for your service, e.g. `home-assistant`
2. Then you then create a `docker-compose.yml` file, which describes the service containers
3. You run `docker-compose up -d` and you're done!
Here are the most frequently used commands:
#### Start a container
`-d` starts in a detached mode - which basically mean that it runs it in the background (so you can do other stuff, instead of looking at the logs).
```sh
docker-compose up -d
```
### Stop a container
There are 2 options:
```sh
docker-compose stop
docker-compose down
```
First one (`stop`) onlu stops the containers, whereas the latter (`down`) does some more cleaning (removes the containers, networks, volumes), so I generally recommend `down` if you're tinkering.
### Update a container to use the latest published image
```sh
docker-compose pull && docker-compose up -d
```
This pulls the latest images as defined in the local `docker-compose.yml` and recreates the containers.

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# Docker Setup
Installation instructions for Ubuntu Linux: https://docs.docker.com/engine/install/ubuntu/
## Uninstall old versions
```sh
sudo apt-get remove docker docker-engine docker.io containerd runc
```
## Install Docker
```sh
sudo apt-get update
sudo apt-get install apt-transport-https ca-certificates curl gnupg-agent software-properties-common
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io
```
## Install `docker-compose`
From: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-compose-on-ubuntu-20-04
```sh
### ERROR: Version in "./docker-compose.yml" is unsupported.
```sh
sudo apt-get remove docker-compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
sudo chmod +x /usr/local/bin/docker-compose
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
```

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# Docker Troubleshooting
Same as **Get Started** section - these instructions are for Ubuntu Linux.
### ERROR: Version in "./docker-compose.yml" is unsupported.
You need to update your `docker-compose` version:
```sh
sudo apt-get remove docker-compose
sudo curl -L "https://github.com/docker/compose/releases/download/1.27.4/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
@ -29,19 +30,19 @@ OCI runtime create failed: container_linux.go:349: starting container process ca
```
#### Follow These Steps:
1. edit grub
1. Edit grub
```sh
sudo nano /etc/default/grub
```
2. change GRUB_CMDLINE_LINUX value to the below:
2. Change `GRUB_CMDLINE_LINUX` value as below:
```
GRUB_CMDLINE_LINUX="systemd.unified_cgroup_hierarchy=0"
```
3. then run:
3. Reconfigure grub:
```sh
grub2-mkconfig
```
4. then:
4. Finally reboot the system:
```sh
sudo reboot
```

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# Docker Usage