CI: move docker worker to github action

This makes things a bit more reliable and save us much-needed time
as we want to minimize our maintenance of the docker farm.

.github/workflows/run_ubuntu_18_gtls_only.yml

@@ -0,0 +1,64 @@
+# Copyright 2020 Rainer Gerhards and Others
+#
+# https://github.com/rsyslog/rsyslog-pkg-ubuntu
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+# References:
+#
+# https://help.github.com/en/github/managing-subscriptions-and-notifications-on-github/configuring-notifications#github-actions-notification-options
+# https://github.com/settings/notifications
+# https://software.opensuse.org//download.html?project=home%3Argerhards&package=rsyslog
+
+
+---
+name: check ubuntu 18 GnuTLS only
+
+on:
+  pull_request:
+
+jobs:
+  check_run:
+    runs-on: ubuntu-18.04
+    timeout-minutes: 50
+    continue-on-error: true
+
+    steps:
+      - name: git checkout project
+        uses: actions/checkout@v1
+
+      - name: run container CI pipeline
+        run: |
+          chmod -R go+rw .
+          export RSYSLOG_CONTAINER_UID="" # use default
+          export RSYSLOG_STATSURL='http://build.rsyslog.com/testbench-failedtest.php'
+          export CFLAGS='-g'
+          export CC='clang'
+          export USE_AUTO_DEBUG='off'
+          export CI_MAKE_OPT='-j20'
+          export CI_MAKE_CHECK_OPT='-j8'
+          export CI_CHECK_CMD='check'
+          export RSYSLOG_DEV_CONTAINER='rsyslog/rsyslog_dev_base_ubuntu:18.04'
+          export CC='clang'
+          export CFLAGS="-g"
+          # note: we need pathes in container, thus /rsyslog vs. $(pwd) in TSAN_OPTIONS
+          export ABORT_ALL_ON_TEST_FAIL='NO'
+          # note: we OVERRIDE all of the container's default configure options to keep it very slim
+          export RSYSLOG_CONFIGURE_OPTIONS_OVERRIDE="-enable-testbench --enable-omstdout --enable-imdiag --disable-fmhttp --enable-valgrind --disable-default-tests --enable-gnutls --disable-imfile-tests --enable-extended-tests"
+          devtools/devcontainer.sh --rm devtools/run-ci.sh
+
+      - name: show error logs (if we errored)
+        if:  ${{ failure() || cancelled() }}
+        run: |
+          devtools/gather-check-logs.sh
+          cat failed-tests.log