add deploy config and action for fly.io

.github/workflows/deploy.yml

@@ -0,0 +1,25 @@
+name: deploy
+on:
+  push:
+    branches:
+      - "main"
+  workflow_dispatch:
+  repository_dispatch:
+    types: [deploy]
+
+concurrency:
+  group: ${{ github.workflow }}
+  cancel-in-progress: true
+
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    environment: production
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+      - uses: superfly/flyctl-actions/setup-flyctl@master
+      - run: flyctl -c cmd/gomfweb/fly.toml deploy --remote-only
+        env:
+          FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}

cmd/gomfweb/Dockerfile

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+FROM --platform=$BUILDPLATFORM cgr.dev/chainguard/wolfi-base:latest as build
+RUN apk update && apk add build-base git openssh go-1.21
+
+WORKDIR /work
+
+COPY go.mod go.sum ./
+RUN go mod download && go mod verify
+
+COPY . .
+ARG TARGETOS TARGETARCH
+RUN GOOS=${TARGETOS} GOARCH="${TARGETARCH}" CGO_ENABLED=0 go build -v ./cmd/gomfweb
+
+FROM cgr.dev/chainguard/static:latest
+
+COPY --from=build /work/gomfweb /gomfweb
+
+WORKDIR /
+ENTRYPOINT ["/gomfweb"]
+CMD []
+
+EXPOSE 4001

cmd/gomfweb/fly.toml

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+# To deploy, run this from the repo root:
+#
+#   fly deploy -c cmd/gomfweb/fly.toml
+
+app = 'microformats-go'
+primary_region = 'sjc'
+
+[build]
+  dockerfile = "Dockerfile"
+
+[http_service]
+  internal_port = 4001
+  force_https = true
+  auto_stop_machines = true
+  auto_start_machines = true
+  min_machines_running = 0
+
+[[vm]]
+  size = 'shared-cpu-1x'