Migrate docker articles

content/articles/docker/cheat-sheet.md

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+---
+title: Docker Cheat Sheet
+date: 2018-12-29
+topics:
+- docker
+- cheat-sheet
+---
+
+## Installing Docker
+
+### Windows
+
+<https://hub.docker.com/editions/community/docker-ce-desktop-windows>
+
+### MacOS
+
+<https://hub.docker.com/editions/community/docker-ce-desktop-mac>
+
+### Linux
+
+```shell
+CHANNEL=stable sh -c "$(curl -fsSL https://get.docker.com)"
+```
+
+### Test Docker
+
+```shell
+docker run --rm hello-world
+```
+
+## Running Containers
+
+Run container in *foreground*:
+
+```shell
+docker run --rm -ti <imagename>
+```
+
+Run container in *background*:
+
+```shell
+docker run --rm -d <imagename>
+```
+
+Port mapping:
+
+```shell
+docker run -p <host_port>:<container_port> ...
+```
+
+Container name:
+
+```shell
+docker run --name <containername> ...
+```
+
+Mount host volume:
+
+```shell
+docker run -v <abs_dir_host>:<abs_dir_container>
+docker run -v $(pwd)/<rel_dir_host>:<abs_dir_container> ...
+```
+
+## Building Images
+
+Build container:
+
+```shell
+docker build --tag <imagename> .
+```
+
+## Debugging and Analysis
+
+Get into a container
+
+```shell
+docker exec -ti <container> bash
+```
+
+## Listing Things
+
+All images:
+
+```shell
+docker images
+```
+
+All running containers:
+
+```shell
+docker ps
+```
+
+All containers (including stopped):
+
+```shell
+docker ps -a
+```
+
+Volumes/Mounts of a container:
+
+```shell
+docker container inspect -f '{{ range .Mounts }}{{ .Name }}:{{ .Destination }} {{ end }}' <container>
+```
+
+## Cleanup
+
+See: <https://docs.docker.com/config/pruning/>
+
+```shell
+docker system prune
+docker image prune
+docker container prune
+docker volume prune
+```

content/articles/docker/docker-compose.md

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+---
+title: docker-compose
+date: 2020-02-01
+topics:
+- docker
+---
+
+## Basics
+
+Start:
+
+```shell
+docker-compose up
+docker-compose up -d
+```
+
+Shutdown:
+
+```shell
+docker-compose down
+```
+
+## docker-compose.yml
+
+The default name for the **compose file** is:
+
+    docker-compose.yml
+
+Reference: <https://docs.docker.com/compose/compose-file/>
+
+Version Changelog: <https://docs.docker.com/compose/compose-file/compose-versioning/#version-3>
+
+### Example
+
+**Important:** This example file is not supposed to be working. It's just a "random" collection of useful compose directives.
+
+```yml
+version: '3.1'
+
+services:
+  wordpress:
+    image: wordpress
+    ports:
+      # Exposes port 80 from container on 8080 on host
+      # NOTE: Always use strings or the numbers will be interpreted as base 60.
+      - "8080:80"
+    volumes:
+      # Host mounted volume
+      - ./html:/var/www/html:ro
+    environment:
+      WORDPRESS_DB_HOST: db
+      WORDPRESS_DB_USER: exampleuser
+
+  db:
+    image: mysql:5.7
+    restart: always
+```