docker improvements:

* use alpine for small docker images
* use docker compose to wait for the database to be ready
* use a single Dockerfile with parameters to determine the correct GOARCH
* update makefile to account for the new GOARCH parameter on the Dockerfile
* remove native-arch-Dockerfile

Makefile

@@ -25,11 +25,11 @@ release:
 	git push && git push --tags
 
 build-static:
-	ssh server "cd ~/code/hishtory/; git pull; docker build -t gcr.io/dworken-k8s/hishtory-static -f backend/web/caddy/Dockerfile ."
+	ssh server "cd ~/code/hishtory/; git pull; docker build --build-arg GOARCH=amd64 --tag gcr.io/dworken-k8s/hishtory-static --file backend/web/caddy/Dockerfile ."
 
 build-api:
 	rm hishtory server || true
-	docker build -t gcr.io/dworken-k8s/hishtory-api -f backend/server/Dockerfile . 
+	docker build --build-arg GOARCH=amd64 --tag gcr.io/dworken-k8s/hishtory-api --file backend/server/Dockerfile .
 
 deploy-static: build-static
 	ssh server "docker push gcr.io/dworken-k8s/hishtory-static"

backend/server/Dockerfile

@@ -1,10 +1,14 @@
-FROM golang:1.18 AS builder
+FROM golang:1.18-alpine3.17 AS builder
-COPY go.mod ./
-COPY go.sum ./
-RUN unset GOPATH; go mod download
-COPY . ./
-RUN unset GOPATH; GOARCH=amd64 go build -o /server -ldflags "-X main.ReleaseVersion=v0.`cat VERSION`" backend/server/server.go
 
-FROM golang:1.18
+WORKDIR /app
+COPY go.mod go.sum ./
+RUN go mod download
+COPY . ./
+ARG GOARCH
+RUN apk add --update --no-cache --virtual .build-deps build-base && \
+    GOARCH=${GOARCH} go build -o /server -ldflags "-X main.ReleaseVersion=v0.`cat VERSION`" backend/server/server.go && \
+    apk del .build-deps
+
+FROM alpine:3.17
 COPY --from=builder /server /server
 CMD ["/server"]  

backend/server/docker-compose.yml

@@ -5,6 +5,7 @@
 #   4. Point your hiSHtory client at the server by putting `export HISHTORY_SERVER=http://1.2.3.4` in your shellrc
 #   5. Run `hishtory init` to initialize hiSHtory with the local server
 #   6. [Optional, but recommended] Add a TLS proxy to enable https
+version: "3.8"
 networks:
   hishtory:
     driver: bridge
@@ -19,17 +20,28 @@ services:
       POSTGRES_DB: hishtory
       PGDATA: /var/lib/postgresql/data/pgdata
     volumes:
-      - ./postgres-data:/var/lib/postgresql/data
+      - postgres-data:/var/lib/postgresql/data
+    healthcheck:
+      test: pg_isready -U postgres
+      interval: 10s
+      timeout: 3s
   hishtory:
     depends_on:
-      - postgres
+      postgres:
+        condition: service_healthy
     networks:
       - hishtory
     build:
       context: ../../
-      dockerfile: ./backend/server/native-arch-Dockerfile
+      dockerfile: ./backend/server/Dockerfile
     restart: unless-stopped
+    deploy:
+      restart_policy:
+        condition: on-failure
+        delay: 3s
     environment:
       HISHTORY_POSTGRES_DB: postgresql://postgres:TODO_YOUR_POSTGRES_PASSWORD_HERE@postgres:5432/hishtory?sslmode=disable
     ports:
       - 80:8080
+volumes:
+  postgres-data:

backend/server/native-arch-Dockerfile

@@ -1,17 +0,0 @@
-# A fork of Dockerfile that doesn't hard code GOARCH and that uses wait-for to wait 
-# until the postgres server is up. Meant to be used in the docker-compose file for self hosting.
-
-FROM golang:1.18 AS builder
-COPY go.mod ./
-COPY go.sum ./
-RUN unset GOPATH; go mod download
-COPY . ./
-RUN unset GOPATH; go build -o /server -ldflags "-X main.ReleaseVersion=v0.`cat VERSION`" backend/server/server.go
-
-FROM golang:1.18
-RUN apt-get update && apt-get install -y netcat
-# Downlaod wait-for from a specific commit hash. This ensures that the owner of wait-for isn't in our TCB (though Github still is)
-RUN curl https://raw.githubusercontent.com/eficode/wait-for/59bec22851ba83e9cc735a67a7d961f8aae2cd85/wait-for > /wait-for
-RUN chmod +x /wait-for 
-COPY --from=builder /server /server
-CMD ["/wait-for", "postgres:5432", "--", "/server"]