Update README.md

README.md

@@ -2,6 +2,12 @@
 
 ## Setup
 
+``` bash
+curl -fsSL https://get.docker.com -o get-docker.sh
+sh get-docker.sh
+docker run hello-world
+```
+
 ### Alphine
 source https://wiki.alpinelinux.org/wiki/Docker
 
@@ -10,12 +16,61 @@ apk add docker
 addgroup username docker
 rc-update add docker default
 service docker start
+```
+### fuse overlay
 
+```bash
+apt install --yes fuse-overlayfs
+```
+
+## Containers
+
+### Containers list
+
+```bash
+docker container list
 ```
 
 
+### Interactive shell
+
+```bash
+#example with ubuntu
+docker container run -it ubuntu /bin/bash
+```
+### Remove when finished
+
+```bash
+#example with ubuntu
+docker container run -rm ubuntu
+```
+### Attach to a running container
+
+```bash
+#attach to stdout of container with name ubuntu
+docker container run -a ubuntu
+## connects to container with name ubuntu and attach to bash (interactive)
+docker exec -it pm_wp_adminer /bin/bash
+```
+
 ## Volumes
 
+### Export / Backup
+
+```bash
+#export volumes (tar) from dbstore container into volume
+docker run --rm --volumes-from dbstore -v $(pwd):/backup ubuntu tar cvf /backup/backup.tar /dbdata
+```
+
+
+### Import / Restores
+
+```bash
+#inports volumes (untar) into dbstore2
+docker run --rm --volumes-from dbstore2 -v $(pwd):/backup ubuntu bash -c "cd /dbdata && tar xvf /backup/backup.tar --strip 1"
+```
+
+
 ### NFS
 
 Notes:
@@ -117,3 +172,32 @@ if network required between host and docker container on a macvlan docker networ
         post-up ip route add 192.168.1.250 dev macvlan_bridge
         post-up ip route add 192.168.1.248 dev macvlan_bridge
     ```
+
+## log
+
+write to docker log buffer
+
+``` bash
+echo "Hello World!" >> /proc/1/fd/1
+``` 
+
+clear all docker logs
+
+``` bash
+truncate -s 0 /var/lib/docker/containers/*/*-json.log;
+``` 
+
+## delete all images
+
+``` bash
+docker rmi -f $(docker images -aq)
+``` 
+
+## delete all images
+
+``` bash
+docker volume rm $(docker volume ls -qf dangling=true)
+``` 
+
+
+