Make features configurable on Docker build

Default to 'all' features on dockerfile, but publish only hostapps
support on the default image and add an 'unstable' tag with additional
features

Change-type: minor

Author: pipex

.github/workflows/flowzone.yml

@@ -50,6 +50,9 @@ jobs:
     with:
       docker_images: |
         ghcr.io/balena-io/helios
+      bake_targets: |
+        default,
+        unstable
       # The dockerfile runs its own tests so only test building
       # for aarch64
       cargo_targets: aarch64-unknown-linux-gnu

Dockerfile

@@ -1,5 +1,10 @@
+# Comma-separated list of features
+ARG HELIOS_FEATURES=all
+
 FROM alpine:3.22 AS build
 
+ARG HELIOS_FEATURES
+
 # Install build dependencies
 RUN apk add --update --no-cache \
 	build-base \
@@ -21,7 +26,7 @@ COPY helios-util ./helios-util
 
 # Build release
 # Unit tests are run separately by CI
-RUN cargo build --release --locked
+RUN cargo build --no-default-features --features $HELIOS_FEATURES --release --locked
 
 # Release target
 FROM alpine:3.22

docker-bake.hcl

@@ -1,6 +1,25 @@
 target "default" {
   context = "./"
   dockerfile = "Dockerfile"
+  args = {
+    HELIOS_FEATURES = "hostapps"
+  }
+  platforms = [
+    "linux/386",
+    "linux/amd64",
+    "linux/arm64",
+    "linux/arm/v6",
+    "linux/arm/v7",
+  ]
+}
+
+
+target "unstable" {
+  context = "./"
+  dockerfile = "Dockerfile"
+  args = {
+    HELIOS_FEATURES = "all"
+  }
   platforms = [
     "linux/386",
     "linux/amd64",

docker-compose.test.yml

@@ -14,7 +14,10 @@ services:
         condition: service_started
 
   helios-api:
-    build: ./
+    build:
+      context: ./
+      args:
+        HELIOS_FEATURES: all
     image: helios
     command: socat TCP-LISTEN:80,reuseaddr,fork UNIX-CONNECT:/tmp/run/helios.sock
     depends_on:
@@ -27,6 +30,11 @@ services:
 
   # Override default configurations
   helios:
+    build:
+      context: ./
+      args:
+        HELIOS_FEATURES: all
+    image: helios
     # Set-up required variables
     environment:
       DOCKER_HOST: 'unix:///var/run/docker.sock'

helios/Cargo.toml

@@ -26,7 +26,8 @@ tracing-subscriber.workspace = true
 tracing.workspace = true
 
 [features]
-default = ["userapps", "balenahup", "v3-api"]
+default = ["all"]
+all = ["userapps", "balenahup", "v3-api"]
 userapps = ["helios-state/userapps"]
 balenahup = ["helios-state/balenahup"]
 v3-api = ["helios-api/v3"]