Add configuration for Cirrus-CI

Testing podman requires exercising on a full-blown VM.  The current
containerized-approach is complicated, and mostly a band-aid over
shortcomings in the other CI systems.  Namely, we want:

* To pre-build environments with dependencies to reduce the
  setup time needed for testing.
* The ability to verify the pre-built environments are working
  before utilizing them for further testing.
* A simple, single set of flexible automation instructions to
  reduce maintenance burden.
* Ease of environment reproduction across clouds or locally, for
  debugging failures.

This change leverages Cirrus-CI + Packer + collection of shell scripts
to realize all of the above.

Signed-off-by: Chris Evich <cevich@redhat.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/contrib/cirrus/ooe.sh b/contrib/cirrus/ooe.sh
new file mode 100755
index 000000000..d79e574b2
--- /dev/null
+++ b/contrib/cirrus/ooe.sh
@@ -0,0 +1,39 @@
+#!/bin/bash
+
+# This script executes a command while logging all output to a temporary
+# file.  If the command exits non-zero, then all output is sent to the console,
+# before returning the exit code.  If the script itself fails, the exit code 121
+# is returned.
+
+set -eo pipefail
+
+SCRIPT_PATH="$0"
+
+badusage() {
+    echo "Incorrect usage: $(basename $SCRIPT_PATH) <command> [options]" > /dev/stderr
+    echo "ERROR: $1"
+    exit 121
+}
+
+COMMAND="$@"
+[[ -n "$COMMAND" ]] || badusage "No command specified"
+
+OUTPUT_TMPFILE="$(mktemp -p '' $(basename $0)_output_XXXX)"
+output_on_error() {
+    RET=$?
+    set +e
+    if [[ "$RET" -ne "0" ]]
+    then
+        echo "---------------------------"
+        cat "$OUTPUT_TMPFILE"
+        echo "[$(date --iso-8601=second)] <exit $RET> $COMMAND"
+    fi
+    rm -f "$OUTPUT_TMPFILE"
+}
+trap "output_on_error" EXIT
+
+"$@" 2>&1 | while IFS='' read LINE  # Preserve leading/trailing whitespace
+do
+    # Every stdout and (copied) stderr line
+    echo "[$(date --iso-8601=second)] $LINE"
+done >> "$OUTPUT_TMPFILE"