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Now I can access Jackett at http://<host-ip>:9117 and all traffic will be sent through the VPN container's network!

This enables a container to attach to your host’s network (meaning the configuration inside the container matches the configuration outside the container).

my in

sudo snap refresh

OpenSSH for Windows

Add the keys and set permissions

RUN echo "$ssh_prv_key" > /root/.ssh/id_rsa && \
echo "$ssh_pub_key" > /root/.ssh/id_rsa.pub && \
chmod 600 /root/.ssh/id_rsa && \
chmod 600 /root/.ssh/id_rsa.pub

If you push a new image with a tag which is neither empty nor ‘latest’, :latest will not be affected or created.

This will export the value stored in the secret to the correct environment variable (MYSQL_PASSWORD in this case)

As I said at the beginning of the guide, I am not an expert on Docker or Security. As with everything on this site, I research, learn, try, and then share what I learned with the community.

When a Docker image is pulled from the registry, the engine downloads all the dependent layers to the host. When a container is launched from a downloaded image comprised of many layers, Docker uses the copy-on-write capabilities of the available union filesystem to add a writeable “working directory” — or temporary filesystem — on top of the existing read-only layers. When Docker first starts a container, this initial read-write layer is empty until changes are made to the file system by the running container process. When a Docker image is created from an existing container, only the changes made — which have all been “copied up” to this writeable working directory — are added into the new layer. This approach enables reuse of images without duplication or fragmentation.