Disable DWARF and symbol table to decrease binary/image size

This commit introduces DBG variable which is used to control
including DWARF and symbol table for images/binaries
Signed-off-by: Sunnatillo <[email protected]>

Author: Sunnatillo

Makefile

@@ -73,6 +73,11 @@ OBSERVABILITY_DIR := hack/observability
 
 export PATH := $(abspath $(TOOLS_BIN_DIR)):$(PATH)
 
+# DBG=1 for building binaries which includes DWARF and symbol table for delve
+# degubbing. When DBG is unspecified it defaults to "-s -w" which strips debug
+# information.
+export DBG ?= 0
+
 #
 # Ginkgo configuration.
 #

hack/version.sh

@@ -102,7 +102,12 @@ version::ldflags() {
     add_ldflag "gitReleaseCommit" "${GIT_RELEASE_COMMIT}"
 
     # The -ldflags parameter takes a single string, so join the output.
-    echo "${ldflags[*]-}"
+    # When DBG is set to 1 include DWARF and symbol table for delve degubbing
+    if [[ "${DBG:-}" == 1 ]]; then
+        echo "${ldflags[*]-}"
+    else
+        echo "${ldflags[*]-}" " -s -w"
+    fi
 }
 
 version::ldflags

scripts/ci-e2e.sh

@@ -32,6 +32,9 @@ source "${REPO_ROOT}/hack/ensure-kind.sh"
 # Make sure the tools binaries are on the path.
 export PATH="${REPO_ROOT}/hack/tools/bin:${PATH}"
 
+# Include debugging tools for container images for e2e tests
+export DBG=1
+
 # Builds CAPI (and CAPD) images.
 capi:buildDockerImages