tests: use github actions instead of circleci for test running

.github/commands/ci-run

@@ -0,0 +1,15 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+main() {
+  declare FILE_NAME="$1"
+
+  mkdir -p test-results/bats
+  pushd tests/unit >/dev/null
+  bats --report-formatter junit --output ../../test-results/bats "$FILE_NAME.bats"
+  popd >/dev/null
+
+  ls -lah test-results/bats
+}
+
+main "$@"

.github/commands/ci-setup

@@ -0,0 +1,20 @@
+#!/usr/bin/env bash
+set -eo pipefail
+
+echo "=====> resolve dokku.me"
+sudo apt -qq -y --no-install-recommends install net-tools
+# dokku.me now resolves to 10.0.0.2. add 10.0.0.2/24 to eth0
+ifconfig
+sudo ip addr add 10.0.0.2/24 broadcast 10.0.0.255 dev eth0
+
+echo "=====> install ci-dependencies"
+make ci-dependencies
+
+echo "=====> setup tests"
+./tests/ci/setup.sh
+
+echo "=====> dokku cleanup:skip"
+echo 'export DOKKU_SKIP_CLEANUP=true' | sudo tee /home/dokku/.dokkurc/dokku_skip_cleanup
+
+echo "=====> dokku report"
+dokku report

.github/commands/matrix

@@ -0,0 +1,9 @@
+#!/usr/bin/env python
+import json
+import os
+
+keys = ["index"]
+values = [[s.replace(".bats", "") for s in os.listdir("tests/unit/") if s.endswith(".bats")]]
+zi = zip(keys, values)
+data = json.dumps(dict(zi))
+print(data.replace(" ", ""))