Docker VOlume.txt

1) tmpfs mounts
----------------------------------------------------

docker run -it --name tmptestcont --mount type=tmpfs,destination=/app,tmpfs-mode=770 -P nginx:latest /bin/bash

docker run -it --name tmptestcont2 --mount type=tmpfs,destination=/app,tmpfs-size=1024 -P nginx:latest /bin/bash

tmpfs-mode ---> File mode of the tmpfs in octal ex: 770 -- Full permissons
Defaults to 1777 -- world readable

tmpfs-size ---> Size of the tmpfs mount in bytes. Unlimited by default.

docker container inspect tmptestcont

docker container start tmptestcont 
docker exec -it tmptestcont /bin/bash

2) BindMounts
--------------------------------------------------

Doesn't create a non-existing folder:
docker run -d -it --name devtest --mount type=bind,source="$(pwd)"/target,target=/usr -P nginx:latest

Creates a non-existing folder and mounts:
docker run -i -t --name devtest3 -v "$(pwd)"/target:/temporary -p 8888:80 nginx:latest /bin/bash

echo "test content" > target/test.txt

docker exec -it devtest /bin/bash

Create another container with same bind mount:
docker run -it --name devtest4 -v "$(pwd)"/target:/app -P nginx:latest /bin/bash


To create a readonly bind mount:
docker run -it --name devtest4 -v "$(pwd)"/target:/app:ro -P nginx:latest /bin/bash



3) Volumes
-----------------------------------------------------------

docker volume create my-vol

docker volume ls

docker volume inspect my-vol

start a container with volume which doesn't exit:
docker run -it --name test1 --mount source=myvol,target=/app -P nginx:latest /bin/bash

docker run -it --name test2 --mount source=myvol2,target=/app -P nginx:latest /bin/bash

create a continer with vol as readonly:
docker run -it --name test3 --mount source=myvol,target=/app,readonly -P nginx:latest /bin/bash

populate a vol with container
docker run -it --name test4 --mount source=myvol3,target=/usr/share/nginx/html -P nginx:latest /bin/bash

docker volume inspect myvol3

mounting volume from another contianer:
docker run -it --name test5 --volumes-from test3 -P nginx /bin/bash



docker run -it --name test4 --volumes-from test3 nginx /bin/bash

Anonymous volumes:

docker run -it --name testubuntu1 -v /foo -v awesome:/bar ubuntu /bin/sh


docker run -dit --name testubuntu3 --rm -v 23485ba646e8f1a1c7306ecc9a02ed89e022a32d8f657050f9a0fa0f76d2abac:/foo -v awesome:/bar ubuntu 


docker exec -it testubuntu1 /bin/bash