Add DEBUG var to control debug printing

It's not always necessary to have debug prints, most of the time it's
useful when developing Shipyard/script features or when running the CI.

The `DEBUG` env var can be use to request debug printing.
Currently the default is `true` to maintain the current behavior, but
after adoption this can be set to `false` (or unset).

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>

.github/workflows/clean-tests.yml

@@ -4,6 +4,8 @@ name: Clean Target Verification
 on:
   pull_request:
 
+env:
+  DEBUG: true
 jobs:
   clean-clusters:
     name: Cluster Clean-up

.github/workflows/multiarch.yml

@@ -4,6 +4,8 @@ name: Multi-arch Builds
 on:
   pull_request:
 
+env:
+  DEBUG: true
 jobs:
   check-multiarch:
     name: Check the multi-arch builds

.github/workflows/scripts.yml

@@ -4,6 +4,8 @@ name: Shared Scripts
 on:
   pull_request:
 
+env:
+  DEBUG: true
 jobs:
   clusters:
     name: Clusters

Makefile.dapper

@@ -39,11 +39,15 @@ RUN_IN_DAPPER = ./.dapper $(DAPPER_ARGS) $(SELINUX_CONTEXT) --
 
 endif
 
+ifeq (true,$(DEBUG))
+MAKE_DEBUG_FLAG = --debug=b
+endif
+
 # Only run command line goals in dapper (except things that have to run outside of dapper).
 # Otherwise, make applies this rule to various files and tries to build them in dapper (which doesn't work, obviously).
 $(filter-out .dapper prune-images shell targets $(NON_DAPPER_GOALS),$(MAKECMDGOALS)): .dapper $(BASE_DAPPER)
 	-docker network create -d bridge kind
-	+$(RUN_IN_DAPPER) make --debug=b $@
+	+$(RUN_IN_DAPPER) make $(MAKE_DEBUG_FLAG) $@
 
 # The original dockerfiles will live in Shipyard and be downloaded by consuming projects.
 $(BASE_DAPPER) $(LINTING_DAPPER):

Makefile.inc

@@ -5,8 +5,9 @@ PRELOAD_IMAGES ?= submariner-gateway submariner-operator submariner-route-agent
 
 ### Tunable variables for affecting make commands ###
 # Affecting multiple commands
+DEBUG ?= true
 TIMEOUT ?= 5m
-export GLOBALNET PLUGIN SETTINGS TIMEOUT
+export DEBUG GLOBALNET PLUGIN SETTINGS TIMEOUT
 
 # Specific to `clusters`
 K8S_VERSION ?= 1.23

gh-actions/e2e/action.yaml

@@ -36,6 +36,8 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - shell: bash
+      run: echo "DEBUG=true" >> $GITHUB_ENV
     - shell: bash
       run: |
         echo "::group::Reclaiming free space"

gh-actions/release-images/action.yaml

@@ -11,6 +11,8 @@ inputs:
 runs:
   using: "composite"
   steps:
+    - shell: bash
+      run: echo "DEBUG=true" >> $GITHUB_ENV
     - name: Set up QEMU (to support building on non-native architectures)
       uses: docker/setup-qemu-action@27d0a4f181a40b142cce983c5393082c365d1480
     - name: Set up buildx

gh-actions/upgrade-e2e/action.yaml

@@ -4,6 +4,8 @@ description: 'Runs an upgrade procedure, followed by end to end tests with multi
 runs:
   using: "composite"
   steps:
+    - shell: bash
+      run: echo "DEBUG=true" >> $GITHUB_ENV
     - shell: bash
       run: |
         echo "::group::Reclaiming free space"

scripts/shared/lib/debug_functions

@@ -19,5 +19,6 @@ function trap_commands() {
 
 ### Main ###
 
+[[ "${DEBUG}" == 'true' ]] || return 0
 set -T
 trap_commands