services/pkg: create containers for buildbot and buildbot-builder

.github/workflows/pkg-buildbot-builder.yml

@@ -0,0 +1,23 @@
+name: buildbot-builder Service Container
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - master
+    paths:
+      - services/pkg/buildbot-builder/**
+  push:
+    branches:
+      - master
+    paths:
+      - services/pkg/buildbot-builder/**
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  main:
+    uses: ./.github/workflows/build-pkg.yml
+    with:
+      service_name: buildbot-builder

.github/workflows/pkg-buildbot.yml

@@ -0,0 +1,23 @@
+name: buildbot Service Container
+on:
+  workflow_dispatch:
+  pull_request:
+    branches:
+      - master
+    paths:
+      - services/pkg/buildbot/**
+  push:
+    branches:
+      - master
+    paths:
+      - services/pkg/buildbot/**
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  main:
+    uses: ./.github/workflows/build-pkg.yml
+    with:
+      service_name: buildbot

services/pkg/buildbot-builder/Dockerfile

@@ -0,0 +1,27 @@
+FROM ghcr.io/void-linux/void-glibc-full:20240526R1 AS build
+
+RUN xbps-install -Suy xbps && xbps-install -uy git go
+ARG GO_XBPS_SRC_VERSION=4c394976975f7e84062f56d437b41a0d48043792
+RUN env GOBIN=/usr/local/bin GOMODCACHE=/tmp/go \
+    go install -v github.com/Duncaen/go-xbps-src/cmd/xbps-src-make@$GO_XBPS_SRC_VERSION
+
+FROM build AS buildbot-builder
+RUN xbps-install -Suy xbps && xbps-install -uy python3 tini git curl bash make rsync
+COPY --from=build /usr/local/bin/xbps-src-make /usr/local/bin/xbps-src-make
+RUN rm -rf /var/cache/xbps && \
+    groupadd --gid 418 void-builder && \
+    useradd --uid 418 --gid 418 -G xbuilder -M -d /buildbot void-builder && \
+    mkdir /venv /buildbot && \
+    chown void-builder:void-builder /venv /buildbot
+USER void-builder
+# version must be synced with ../buildbot
+RUN python3 -m venv /venv && \
+	/venv/bin/pip3 install wheel && \
+	/venv/bin/pip3 install 'buildbot-worker~=4.0.0'
+WORKDIR /buildbot
+RUN mkdir -p /buildbot && \
+    ln -sf /local/info /buildbot/info && \
+    ln -sf /local/xbps-src.conf /buildbot/.xbps-src.conf
+COPY buildbot.tac /buildbot/
+ENTRYPOINT ["/usr/bin/tini", "--"]
+CMD ["/venv/bin/buildbot-worker", "start", "--nodaemon", "/buildbot"]

services/pkg/buildbot-builder/buildbot.tac

@@ -0,0 +1,56 @@
+# vim: set filetype=python:
+
+import os
+import configparser
+
+from buildbot_worker.bot import Worker
+
+from twisted.application import service
+from twisted.python.logfile import LogFile
+from twisted.python.log import ILogObserver, FileLogObserver
+
+basedir = '.'
+rotateLength = 10000000
+maxRotatedFiles = 10
+
+# if this is a relocatable tac file, get the directory containing the TAC
+if basedir == '.':
+    import os.path
+    basedir = os.path.abspath(os.path.dirname(__file__))
+
+# note: this line is matched against to check that this is a worker
+# directory; do not edit it.
+application = service.Application('buildbot-worker')
+
+logfile = LogFile.fromFullPath(
+    os.path.join(basedir, "twistd.log"), rotateLength=rotateLength,
+    maxRotatedFiles=maxRotatedFiles)
+application.setComponent(ILogObserver, FileLogObserver(logfile).emit)
+
+ini = configparser.ConfigParser()
+ini.read_dict({'buildbot': {}, 'worker': {}})
+ini.read('/local/config.ini')
+
+buildmaster_host = ini['buildbot'].get('host', 'localhost')
+port = ini['buildbot'].getint('worker-port', 9989)
+workername = ini['worker'].get('name', 'example-worker')
+with open("/secrets/buildbot/worker-password") as f:
+    passwd = f.read()
+keepalive = ini['worker'].getint('keepalive', 600)
+umask = None
+maxdelay = ini['worker'].getint('maxdelay', 300)
+numcpus = None
+allow_shutdown = None
+maxretries = None
+use_tls = 0
+delete_leftover_dirs = False
+proxy_connection_string = None
+protocol = 'pb'
+
+s = Worker(buildmaster_host, port, workername, passwd, basedir,
+           keepalive, umask=umask, maxdelay=maxdelay,
+           numcpus=numcpus, allow_shutdown=allow_shutdown,
+           maxRetries=maxretries, protocol=protocol, useTls=use_tls,
+           delete_leftover_dirs=delete_leftover_dirs,
+           proxy_connection_string=proxy_connection_string)
+s.setServiceParent(application)

services/pkg/buildbot/Dockerfile

@@ -0,0 +1,19 @@
+FROM  ghcr.io/void-linux/void-glibc-full:20240526R1
+
+RUN xbps-install -Suy xbps && xbps-install -uy python3 tini git curl
+ARG THEME_VERSION=v0.1
+# version must be synced with ../buildbot-worker
+RUN python3 -m venv /venv && \
+	/venv/bin/pip3 install wheel && \
+	/venv/bin/pip3 install 'buildbot[tls,bundle]~=4.0.0' treq \
+		buildbot-prometheus buildbot-netauth \
+		git+https://github.com/classabbyamp/buildbot-void-theme.git@$THEME_VERSION
+WORKDIR /buildbot
+COPY buildbot.tac /buildbot/
+COPY run.sh /
+# buildbot config should be in its basedir
+# buildbot upgrade-master hardcodes master.cfg
+RUN ln -sf /local/buildbot.cfg /buildbot/buildbot.cfg && \
+	ln -sf /buildbot/buildbot.cfg /buildbot/master.cfg
+ENTRYPOINT ["/usr/bin/tini", "--"]
+CMD ["/bin/sh", "/run.sh"]

services/pkg/buildbot/buildbot.tac

@@ -0,0 +1,20 @@
+# vim: set filetype=python:
+
+import os
+import sys
+
+from twisted.application import service
+from twisted.python.log import FileLogObserver
+from twisted.python.log import ILogObserver
+
+from buildbot.master import BuildMaster
+
+basedir = os.path.abspath(os.path.dirname(__file__))
+
+# note: this line is matched against to check that this is a buildmaster
+# directory; do not edit it.
+application = service.Application('buildmaster')
+application.setComponent(ILogObserver, FileLogObserver(sys.stdout).emit)
+
+m = BuildMaster(basedir, 'buildbot.cfg', umask=None)
+m.setServiceParent(application)

services/pkg/buildbot/run.sh

@@ -0,0 +1,12 @@
+#!/bin/sh
+
+: "${DB_UPGRADE:=$NOMAD_META_DB_UPGRADE}"
+
+if [ "$DB_UPGRADE" = "true" ]; then
+	until /venv/bin/buildbot upgrade-master /buildbot; do
+		echo "upgrading buildbot installation..."
+		sleep 1
+	done
+fi
+
+exec /venv/bin/buildbot start --nodaemon /buildbot

services/pkg/docker-bake.hcl

@@ -25,6 +25,20 @@ target "infra-alps" {
   context = "services/pkg/alps/"
 }
 
+target "infra-buildbot" {
+  inherits = ["_common"]
+  platforms = ["linux/amd64"]
+  args = { "LIBC" = "glibc" }
+  context = "services/pkg/buildbot/"
+}
+
+target "infra-buildbot-builder" {
+  inherits = ["_common"]
+  platforms = ["linux/amd64"]
+  args = { "LIBC" = "glibc" }
+  context = "services/pkg/buildbot-builder/"
+}
+
 target "infra-debuginfod" {
   inherits = ["_common-musl"]
   context = "services/pkg/debuginfod/"