feat: docker healthcheck (#1106)

.goreleaser.yaml

@@ -13,7 +13,7 @@ builds:
 
 dockers:
   - ids: [ catalyst ]
-    dockerfile: docker/goreleaser.Dockerfile
+    dockerfile: docker/Dockerfile
     image_templates:
       - "ghcr.io/securitybrewery/catalyst:main"
       - "ghcr.io/securitybrewery/catalyst:latest"

Makefile

@@ -39,6 +39,22 @@ build-ui:
 	cd ui && bun install
 	cd ui && bun build-only
 
+.PHONY: build
+build: build-ui
+	@echo "Building..."
+	go build -o catalyst .
+
+
+.PHONY: build-linux
+build-linux: build-ui
+	@echo "Building..."
+	GOOS=linux GOARCH=amd64 go build -o catalyst .
+
+.PHONY: docker
+docker: build-linux
+	@echo "Building Docker image..."
+	docker build -f docker/Dockerfile -t catalyst .
+
 .PHONY: dev
 dev:
 	@echo "Running..."

app/routes.go

@@ -18,6 +18,13 @@ func addRoutes() func(*core.ServeEvent) error {
 			return c.Redirect(http.StatusFound, "/ui/")
 		})
 		e.Router.GET("/ui/*", staticFiles())
+		e.Router.GET("/health", func(c echo.Context) error {
+			if _, err := Flags(e.App); err != nil {
+				return err
+			}
+
+			return c.String(http.StatusOK, "OK")
+		})
 
 		e.Router.GET("/api/config", func(c echo.Context) error {
 			flags, err := Flags(e.App)

docker/Dockerfile

@@ -1,24 +1,14 @@
-FROM oven/bun:debian
-RUN apt-get update && apt-get install -y make
-COPY .. /tmp/catalyst
-
-WORKDIR /tmp/catalyst
-
-RUN make build-ui
-
-FROM golang:1.23
-COPY --from=0 /tmp/catalyst /tmp/catalyst
-
-WORKDIR /tmp/catalyst
-
-RUN go build -o /usr/local/bin/catalyst
-
 FROM ubuntu:24.04
 
-COPY --from=1 /usr/local/bin/catalyst /usr/local/bin/catalyst
+RUN apt-get update && apt-get install -y curl python3 python3-pip python3-venv
+
+COPY catalyst /usr/local/bin/catalyst
 
 EXPOSE 8080
 
 VOLUME /usr/local/bin/catalyst_data
 
+HEALTHCHECK --interval=5s --timeout=3s --retries=3 \
+  CMD curl -f http://localhost:8080/health || exit 1
+
 CMD ["/usr/local/bin/catalyst", "serve", "--http", "0.0.0.0:8080"]

docker/goreleaser.Dockerfile

@@ -1,9 +0,0 @@
-FROM ubuntu:24.04
-
-COPY catalyst /usr/local/bin/catalyst
-
-EXPOSE 8080
-
-VOLUME /usr/local/bin/catalyst_data
-
-CMD ["/usr/local/bin/catalyst", "serve", "--http", "0.0.0.0:8080"]