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allow override sshpiperd container arguments (#216)

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To be able to still execute the entrypoint (and any logic which is/will be
there), but completely override the sshpiperd arguments only. So,
customizing the plugins usage should be easy.

Example:

```
$ docker run --rm -it localhost/sshpiperd:test
INFO[0000] starting sshpiperd version: devel, fc6c3e1e9, 2023-08-30T14:31:06Z, go1.21.0
INFO[0000] generating host key /etc/ssh/ssh_host_ed25519_key
INFO[0000] found host keys [/etc/ssh/ssh_host_ed25519_key]
INFO[0000] loading host key /etc/ssh/ssh_host_ed25519_key
INFO[0000] starting child process plugin: [/sshpiperd/plugins/workingdir]
INFO[0000] sshpiperd is listening on: [::]:2222
^C
```

```
$ docker run --rm -it localhost/sshpiperd:test /sshpiperd/plugins/workingdir -- /sshpiperd/plugins/failtoban
INFO[0000] starting sshpiperd version: devel, fc6c3e1e9, 2023-08-30T14:31:06Z, go1.21.0
INFO[0000] generating host key /etc/ssh/ssh_host_ed25519_key
INFO[0000] found host keys [/etc/ssh/ssh_host_ed25519_key]
INFO[0000] loading host key /etc/ssh/ssh_host_ed25519_key
INFO[0000] starting child process plugin: [/sshpiperd/plugins/workingdir]
INFO[0000] starting child process plugin: [/sshpiperd/plugins/failtoban]
INFO[0000] sshpiperd is listening on: [::]:2222
^C
```
This commit is contained in:
Vlastimil Holer 2023-08-30 19:44:37 +02:00 • committed by GitHub
parent c0fc8d5d77
commit 2256c137c8
No known key found for this signature in database
GPG key ID: 4AEE18F83AFDEB23
2 changed files with 4 additions and 4 deletions
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6
Dockerfile
View file

@ -1,4 +1,4 @@
FROM golang:1.21-bullseye as builder FROM docker.io/golang:1.21-bullseye as builder
ARG VER=devel ARG VER=devel
ARG BUILDTAGS="" ARG BUILDTAGS=""
@ -12,7 +12,7 @@ RUN --mount=target=/src,type=bind,source=. --mount=type=cache,target=/root/.cach
RUN --mount=target=/src,type=bind,source=. --mount=type=cache,target=/root/.cache/go-build if [ "$EXTERNAL" = "1" ]; then cp -r plugins /sshpiperd ; else go build -o /sshpiperd/plugins -tags "$BUILDTAGS" ./plugin/...; fi RUN --mount=target=/src,type=bind,source=. --mount=type=cache,target=/root/.cache/go-build if [ "$EXTERNAL" = "1" ]; then cp -r plugins /sshpiperd ; else go build -o /sshpiperd/plugins -tags "$BUILDTAGS" ./plugin/...; fi
ADD entrypoint.sh /sshpiperd ADD entrypoint.sh /sshpiperd
FROM busybox FROM docker.io/busybox
LABEL maintainer="Boshi Lian<farmer1992@gmail.com>" LABEL maintainer="Boshi Lian<farmer1992@gmail.com>"
RUN mkdir /etc/ssh/ RUN mkdir /etc/ssh/
@ -30,4 +30,4 @@ USER $USERID:$GROUPID
COPY --from=builder --chown=$USERID /sshpiperd/ /sshpiperd COPY --from=builder --chown=$USERID /sshpiperd/ /sshpiperd
EXPOSE 2222 EXPOSE 2222
CMD ["/sshpiperd/entrypoint.sh"] ENTRYPOINT ["/sshpiperd/entrypoint.sh"]

2
entrypoint.sh
View file

@ -4,4 +4,4 @@ set -eo pipefail
PLUGIN=${PLUGIN:-workingdir} PLUGIN=${PLUGIN:-workingdir}
export SSHPIPERD_SERVER_KEY_GENERATE_MODE=${SSHPIPERD_SERVER_KEY_GENERATE_MODE:-notexist} export SSHPIPERD_SERVER_KEY_GENERATE_MODE=${SSHPIPERD_SERVER_KEY_GENERATE_MODE:-notexist}
/sshpiperd/sshpiperd /sshpiperd/plugins/$PLUGIN /sshpiperd/sshpiperd "${@:-/sshpiperd/plugins/$PLUGIN}"