docker

Using Docker to run Medusa

We will here show one was of using medusa with Docker, hiding a lot of the details and making your medusa commands shorter and faster to type.

First, define a function and export it. This could be done in your environment so that it is always available.

function medusa(){
  docker run   \
    -v $(pwd):/tmp/output/  \
    --user $(id -u):$(id -u)  \
    -e VAULT_ADDR=$VAULT_ADDR \
    -e VAULT_TOKEN=$VAULT_TOKEN  \
    -e VAULT_SKIP_VERIFY=$VAULT_SKIP_VERIFY  \
    ghcr.io/jonasvinther/medusa:latest "$@"
}
export -f medusa

Now you can export the VAULT_ADDR, VAULT_TOKEN and VAULT_SKIP_VERIFYvariables

VAULT_ADDR=https://192.168.86.41:8201
VAULT_SKIP_VERIFY=true
VAULT_TOKEN=00000000-0000-0000-0000-000000000000

And now you are ready to run medusa like this

medusa export secret/A
A:
  B:
    C:
      D:
        Db:
          DBa: value 1
          DBb: value 2
    E:
      Ea: value 1
      Eb: value 2
  F:
    G:
      Ga: value1
  Xa:
    Z:
      Za: value 1
      Zb: value 2

And if you want it to a file, you can use the volume

medusa export secret/A -o /tmp/output/backup.medusa

TIP : You can change the function to use a different location inside the container that is easier to remember, instead of /tmp/output.