test: introduce SSH based CI for non-native test hosts (#644)

* feat: ssh based CI

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test: implement SSH ci with caches and github actions

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): fix known hosts secret

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): clone the repo, that's important

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore: spelling

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): speed up ci by prebaking the SSH CI image

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): set -euo

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): enable pull_request_target so things work

Signed-off-by: Xe Iaso <me@xeiaso.net>

* chore: spelling

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): oh goody it's broken

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): add cronjob to rebuild ci runner image

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): also run yeet

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): force git version for yeet

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): run set -x in the container

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): fix yeet?

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): remove yeet for now

Signed-off-by: Xe Iaso <me@xeiaso.net>

* test(ssh-ci): disable for PRs for now

Signed-off-by: Xe Iaso <me@xeiaso.net>

---------

Signed-off-by: Xe Iaso <me@xeiaso.net>

test/ssh-ci/rigging.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+[ ! -z "${DEBUG:-}" ] && set -x
+
+if [ "$#" -ne 1 ]; then
+    echo "Usage: rigging.sh <user@host>"
+fi
+
+CIRunnerImage="ghcr.io/techarohq/anubis/ci-runner:latest"
+RunID=${GITHUB_RUN_ID:-$(uuidgen)}
+RunFolder="anubis/runs/${RunID}"
+Target="${1}"
+
+ssh "${Target}" uname -av
+ssh "${Target}" mkdir -p "${RunFolder}"
+git archive HEAD | ssh "${Target}" tar xC "${RunFolder}"
+
+ssh "${Target}" << EOF
+  set -euo pipefail
+  set -x
+  mkdir -p "anubis/cache/{go,go-build,node}"
+  podman pull ${CIRunnerImage}
+  podman run --rm -it \
+    -v "\$HOME/${RunFolder}:/app/anubis" \
+    -v "\$HOME/anubis/cache/go:/root/go" \
+    -v "\$HOME/anubis/cache/go-build:/root/.cache/go-build" \
+    -v "\$HOME/anubis/cache/node:/root/.npm" \
+    -w /app/anubis \
+    ${CIRunnerImage} \
+    sh /app/anubis/test/ssh-ci/in-container.sh
+  ssh "${Target}" rm -rf "${RunFolder}"
+EOF