EXPERIMENTAL, AND BROKEN: parallelize podman-remote tests

Not working on my laptop: two tests just hang. Am pushing anyway
as a starting point for some motivated team member. Good luck!

Signed-off-by: Ed Santiago <[email protected]>

test/buildah-bud/buildah-tests.diff

@@ -1,21 +1,22 @@
-From af4e93ad93b38d085bc5a236fc5da0ad4106d7c2 Mon Sep 17 00:00:00 2001
+From 19c1c40245588ce116933565011da4c12386b696 Mon Sep 17 00:00:00 2001
 From: Ed Santiago <[email protected]>
 Date: Thu, 6 Oct 2022 17:32:59 -0600
 Subject: [PATCH] tweaks for running buildah tests under podman
 
 Signed-off-by: Ed Santiago <[email protected]>
 ---
- tests/helpers.bash | 119 +++++++++++++++++++++++++++++++++++++++++++--
- 1 file changed, 115 insertions(+), 4 deletions(-)
+ tests/helpers.bash | 121 +++++++++++++++++++++++++++++++++++++++++++--
+ 1 file changed, 117 insertions(+), 4 deletions(-)
 
 diff --git a/tests/helpers.bash b/tests/helpers.bash
-index ed5de994e..0671a52d8 100644
+index ed5de994e..49c5d2c7c 100644
 --- a/tests/helpers.bash
 +++ b/tests/helpers.bash
-@@ -80,6 +80,38 @@ EOF
+@@ -80,6 +80,40 @@ EOF
      BUILDAH_REGISTRY_OPTS="${regconfopt} ${regconfdir} --short-name-alias-conf ${TEST_SCRATCH_DIR}/cache/shortnames.conf"
      COPY_REGISTRY_OPTS="${BUILDAH_REGISTRY_OPTS}"
      PODMAN_REGISTRY_OPTS="${regconfopt}"
++    PODMAN_REMOTE_OPTS=
 +
 +    PODMAN_SERVER_PID=
 +    PODMAN_NATIVE="${PODMAN_BINARY} ${ROOTDIR_OPTS} ${PODMAN_REGISTRY_OPTS}"
@@ -33,11 +34,12 @@ index ed5de994e..0671a52d8 100644
 +        if is_rootless; then
 +            sockdir=${XDG_RUNTIME_DIR:-/run/user/$(id -u)}
 +        fi
-+        PODMAN_SOCK_FILE=$sockdir/podman/podman.sock
++        PODMAN_SOCK_FILE=$sockdir/podman/podman-${BATS_SUITE_TEST_NUMBER}.sock
++        PODMAN_REMOTE_OPTS="--url unix://${PODMAN_SOCK_FILE}"
 +        # static CONTAINERS_CONF needed for capabilities test. As of 2021-07-01
 +        # no tests in bud.bats override this; if at some point any test does
 +        # so, it will probably need to be skip_if_remote()d.
-+        env CONTAINERS_CONF_OVERRIDE=${CONTAINERS_CONF_OVERRIDE:-$(dirname ${BASH_SOURCE})/containers.conf} $PODMAN_NATIVE system service --log-level=info --timeout=0 &>>${PODMAN_SERVER_LOG:-/dev/stderr} &
++        env CONTAINERS_CONF_OVERRIDE=${CONTAINERS_CONF_OVERRIDE:-$(dirname ${BASH_SOURCE})/containers.conf} $PODMAN_NATIVE system service --log-level=info --timeout=0 unix://${PODMAN_SOCK_FILE} &>>${PODMAN_SERVER_LOG:-/dev/stderr} &
 +        PODMAN_SERVER_PID=$!
 +        echo ">> pid=$PODMAN_SERVER_PID" >>${PODMAN_SERVER_LOG:-/dev/stderr}
 +        local timeout=10
@@ -51,7 +53,7 @@ index ed5de994e..0671a52d8 100644
  }
 
  function starthttpd() { # directory [working-directory-or-"" [certfile, keyfile]]
-@@ -144,6 +176,32 @@ function teardown_tests() {
+@@ -144,6 +178,32 @@ function teardown_tests() {
      stop_git_daemon
      stop_registry
 
@@ -84,21 +86,21 @@ index ed5de994e..0671a52d8 100644
      # Workaround for #1991 - buildah + overlayfs leaks mount points.
      # Many tests leave behind /var/tmp/.../root/overlay and sub-mounts;
      # let's find those and clean them up, otherwise 'rm -rf' fails.
-@@ -265,7 +323,12 @@ function copy() {
+@@ -265,7 +325,12 @@ function copy() {
  }
 
  function podman() {
 -    command ${PODMAN_BINARY:-podman} ${PODMAN_REGISTRY_OPTS} ${ROOTDIR_OPTS} "$@"
 +    local cmd=${PODMAN_BINARY:-podman}
 +    local opts="${PODMAN_REGISTRY_OPTS} ${ROOTDIR_OPTS}"
 +    if [[ $cmd =~ remote ]]; then
-+        opts=
++        opts="${PODMAN_REMOTE_OPTS}"
 +    fi
 +    command $cmd $opts "$@"
  }
 
  # There are various scenarios where we would like to execute `tests` as rootless user, however certain commands like `buildah mount`
-@@ -329,8 +392,36 @@ function run_buildah() {
+@@ -329,8 +394,36 @@ function run_buildah() {
          --retry)         retry=3;        shift;;  # retry network flakes
      esac
 
@@ -117,7 +119,7 @@ index ed5de994e..0671a52d8 100644
 +        podman_or_buildah=${PODMAN_BINARY}
 +        _opts="${ROOTDIR_OPTS} ${PODMAN_REGISTRY_OPTS}"
 +        if [[ -n "$REMOTE" ]]; then
-+            _opts=
++            _opts="${PODMAN_REMOTE_OPTS}"
 +        fi
 +
 +        # Special case: there's one test that invokes git in such
@@ -136,7 +138,7 @@ index ed5de994e..0671a52d8 100644
 
      # If session is rootless and `buildah mount` is invoked, perform unshare,
      # since normal user cannot mount a filesystem unless they're in a user namespace along with its own mount namespace.
-@@ -344,8 +435,8 @@ function run_buildah() {
+@@ -344,8 +437,8 @@ function run_buildah() {
          retry=$(( retry - 1 ))
 
          # stdout is only emitted upon error; this echo is to help a debugger
@@ -147,7 +149,7 @@ index ed5de994e..0671a52d8 100644
          # without "quotes", multiple lines are glommed together into one
          if [ -n "$output" ]; then
              echo "$output"
-@@ -706,6 +797,26 @@ function skip_if_no_unshare() {
+@@ -706,6 +799,26 @@ function skip_if_no_unshare() {
    fi
  }