🔧 Refactor env vars and optimize Go tool installation 🔧

- Rename ENV_IMAGE_NAME to ENV_REGISTRY_REPO and ENV_ORG_NAME to ENV_REGISTRY_ORG for consistent naming
- Clarify ENV_REGISTRY_URL to be the provider base URL and rename ENV_IMAGE_PUSH to ENV_REGISTRY_PUSH
- Extract install_go_tool helper to handle best-effort installs with periodic cache flushing every 5 tools
- Add GOMAXPROCS, GOMEMLIMIT, and GOFLAGS env vars for controlled Go build resource usage
- Clear test cache before module cache cleanup to reduce peak disk usage during image builds

.env.scripts
rootfs/root/docker/setup/05-custom.sh

.env.scripts

@@ -1,10 +1,10 @@
 # - - - - - - - - - - - - - - - - - - - - - - - - -
-##@Version           :  202604221922-git
+##@Version           :  202605041627-git
 # @@Author           :  CasjaysDev
 # @@Contact          :  CasjaysDev <docker-admin@casjaysdev.pro>
 # @@License          :  MIT
 # @@Copyright        :  Copyright 2026 CasjaysDev
-# @@Created          :  Wed Apr 22 07:22:44 PM EDT 2026
+# @@Created          :  Mon May  4 04:27:58 PM EDT 2026
 # @@File             :  .env.scripts
 # @@Description      :  Variables for gen-dockerfile and buildx scripts
 # @@Changelog        :  newScript
@@ -25,11 +25,12 @@ DOCKER_ENTYPOINT_HEALTH_ENDPOINTS="$DOCKER_ENTYPOINT_HEALTH_ENDPOINTS"
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # Dockerfile info
 ENV_DOCKERFILE="Dockerfile"
-ENV_IMAGE_NAME="go"
+# ENV_REGISTRY_REPO: Registry repository/image name
+ENV_REGISTRY_REPO="go"
 ENV_USE_TEMPLATE="alpine"
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # Maintainer info
-ENV_ORG_NAME="casjaysdev"
+ENV_REGISTRY_ORG="casjaysdev"
 ENV_VENDOR="CasjaysDev"
 ENV_AUTHOR="CasjaysDev"
 ENV_MAINTAINER="CasjaysDev <docker-admin@casjaysdev.pro>"
@@ -37,12 +38,12 @@ ENV_MAINTAINER="CasjaysDev <docker-admin@casjaysdev.pro>"
 # Repository URLs (Full URLs)
 # ENV_GIT_REPO_URL: Complete Git repository URL for source code
 ENV_GIT_REPO_URL="https://github.com/dockersrc/go"
-# ENV_REGISTRY_URL: Complete registry URL for reference (NOT used for pushing)
+# ENV_REGISTRY_URL: Registry provider base URL (for example https://docker.io)
-ENV_REGISTRY_URL="https://hub.docker.com/casjaysdev/go"
+ENV_REGISTRY_URL="https://docker.io"
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # Push Configuration
-# ENV_IMAGE_PUSH: Complete push destination (this IS used for pushing)
+# ENV_REGISTRY_PUSH: Complete push destination derived from registry/org/repo
-ENV_IMAGE_PUSH="casjaysdev/go"
+ENV_REGISTRY_PUSH="casjaysdev/go"
 # ENV_IMAGE_TAG: Default tag for the image
 ENV_IMAGE_TAG="latest"
 # ENV_ADD_TAGS: Additional tags, comma-separated (USE_DATE = auto date tag)
@@ -62,7 +63,7 @@ SERVICE_PORT=""
 EXPOSE_PORTS=""
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # IF using a lanuage such as go, php, rust, ruby, etc set the version here.
-LANG_VERSION="go"
+LANG_VERSION=""
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # Versions
 PHP_VERSION="system"
@@ -80,3 +81,4 @@ ENV_PACKAGES=""
 # - - - - - - - - - - - - - - - - - - - - - - - - -
 # ex: ts=2 sw=2 et filetype=sh
 # - - - - - - - - - - - - - - - - - - - - - - - - -
+

rootfs/root/docker/setup/05-custom.sh

@@ -40,10 +40,32 @@ export GOBIN="/usr/local/bin"
 export PATH="${GOBIN}:${PATH}"
 export CGO_ENABLED=0
 export GOTOOLCHAIN=auto
+export GOMAXPROCS="${GOMAXPROCS:-2}"
+export GOMEMLIMIT="${GOMEMLIMIT:-1GiB}"
+export GOFLAGS="${GOFLAGS:+${GOFLAGS} }-p=1"
 mkdir -p "$GOPATH" "$GOPATH/bin" "$GOPATH/cache" "$GOPATH/pkg/mod"
 
 if command -v go >/dev/null 2>&1; then
   echo "Installing Go developer tools with $(go version)"
+  tool_install_count=0
+
+  install_go_tool() {
+    local tool="$1"
+
+    echo "go install $tool"
+    # Best-effort: don't fail the build if a single upstream tool has
+    # stale deps incompatible with the current Go release. The rest of
+    # the kitchen-sink installs cleanly and the user can manually
+    # `go install` whichever tools they need at runtime against their
+    # own version pin.
+    go install "$tool" || echo "  WARN: skipping $tool (install failed)" >&2
+
+    tool_install_count=$((tool_install_count + 1))
+    if [ "$tool_install_count" -ge 5 ]; then
+      go clean -cache -testcache 2>/dev/null || true
+      tool_install_count=0
+    fi
+  }
 
   for tool in \
     "github.com/golangci/golangci-lint/v2/cmd/golangci-lint@latest" \
@@ -99,13 +121,7 @@ if command -v go >/dev/null 2>&1; then
     "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-grpc-gateway@latest" \
     "github.com/grpc-ecosystem/grpc-gateway/v2/protoc-gen-openapiv2@latest" \
     ; do
-    echo "go install $tool"
+    install_go_tool "$tool"
-    # Best-effort: don't fail the build if a single upstream tool has
-    # stale deps incompatible with the current Go release. The rest of
-    # the kitchen-sink installs cleanly and the user can manually
-    # `go install` whichever tools they need at runtime against their
-    # own version pin.
-    go install "$tool" || echo "  WARN: skipping $tool (install failed)" >&2
   done
 
   # migrate: needs build tags for DB driver compilation. Limited to
@@ -121,6 +137,7 @@ if command -v go >/dev/null 2>&1; then
     || echo "  WARN: skipping migrate (install failed)" >&2
 
   # Drop the module cache; it's not needed in the final image.
+  go clean -testcache 2>/dev/null || true
   go clean -modcache 2>/dev/null || true
   go clean -cache 2>/dev/null || true
   rm -rf "$GOPATH/pkg" "$GOPATH/src" 2>/dev/null || true