hello world render app
docker workflow
Signed-off-by: softprops <d.tangren@gmail.com>
+143
+60
.tangled/workflows/deploy.yml
+60
.tangled/workflows/deploy.yml
···
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# ATCR AppView Release
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# Builds multi-arch (amd64 + arm64) container image and publishes a manifest list.
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when:
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- event: ["push"]
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brach: ["main"]
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engine: kubernetes
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image: quay.io/buildah/stable:latest
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architecture: [amd64, arm64]
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environment:
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IMAGE_REGISTRY: atcr.io
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IMAGE_USER: softprops.bsky.social
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IMAGE_NAME: hello-render
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DOCKERFILE: ./Dockerfile
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steps:
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- name: Build image archive
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command: |
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set -e
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mkdir -p /artifacts
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buildah bud \
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--tag "${IMAGE_NAME}:${TANGLED_ARCHITECTURE}" \
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--file "${DOCKERFILE}" \
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.
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buildah push \
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"${IMAGE_NAME}:${TANGLED_ARCHITECTURE}" \
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"oci-archive:/artifacts/${IMAGE_NAME}.tar"
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final:
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architecture: amd64
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image: quay.io/buildah/stable:latest
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steps:
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- name: Login to registry
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command: |
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echo "${APP_PASSWORD}" | buildah login \
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-u "${IMAGE_USER}" \
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--password-stdin \
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"${IMAGE_REGISTRY}"
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+
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- name: Create and push multi-arch manifest
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command: |
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set -e
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FULL="${IMAGE_REGISTRY}/${IMAGE_USER}/${IMAGE_NAME}"
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buildah pull "oci-archive:/artifacts/amd64/${IMAGE_NAME}.tar"
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buildah pull "oci-archive:/artifacts/arm64/${IMAGE_NAME}.tar"
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buildah manifest create "${FULL}:${TANGLED_REF_NAME}"
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buildah manifest add "${FULL}:${TANGLED_REF_NAME}" "${IMAGE_NAME}:amd64"
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buildah manifest add "${FULL}:${TANGLED_REF_NAME}" "${IMAGE_NAME}:arm64"
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buildah manifest push --all \
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"${FULL}:${TANGLED_REF_NAME}" \
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"docker://${FULL}:${TANGLED_REF_NAME}"
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buildah manifest push --all \
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"${FULL}:${TANGLED_REF_NAME}" \
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"docker://${FULL}:latest"
+22
Dockerfile
+22
Dockerfile
···
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# https://render.com/docs/deploying-an-image#image-requirements
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FROM docker.io/golang:1.26.2-trixie AS builder
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ENV DEBIAN_FRONTEND=noninteractive
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RUN apt-get update && rm -rf /var/lib/apt/lists/*
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WORKDIR /app
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COPY go.mod ./
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RUN go mod download
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COPY . .
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RUN CGO_ENABLED=0 go build \
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-ldflags="-s -w" \
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-o app .
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FROM scratch
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COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
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COPY --from=builder /app/app /app
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EXPOSE 3000
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ENTRYPOINT ["/app"]
+2
README.md
+2
README.md
+56
main.go
+56
main.go
···
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package main
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import (
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"context"
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"errors"
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"fmt"
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"log/slog"
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"net"
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"net/http"
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"os"
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"os/signal"
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"syscall"
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"time"
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)
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func main() {
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l := slog.New(slog.NewJSONHandler(os.Stdout, nil))
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if err := run(l); err != nil {
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l.Error("failed to start application", slog.Any("err", err))
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os.Exit(1)
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}
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}
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func run(l *slog.Logger) error {
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lis, err := net.Listen("tcp", ":3000")
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if err != nil {
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return err
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}
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server := http.Server{
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Handler: http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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fmt.Fprintf(w, "hello %s %s", r.Method, r.URL)
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}),
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}
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go func() {
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if err := server.Serve(lis); !errors.Is(err, http.ErrServerClosed) {
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l.Error("Failed to start server", slog.Any("err", err))
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os.Exit(1)
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}
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}()
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l.Info("server listening", slog.String("addr", lis.Addr().String()))
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// wait for term signal then gracefully shutdown the server
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term := make(chan os.Signal, 1)
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signal.Notify(term, syscall.SIGINT, syscall.SIGTERM)
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<-term
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shutdownCtx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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defer cancel()
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if err := server.Shutdown(shutdownCtx); err != nil {
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l.Error("failed to shutdown server", slog.Any("err", err))
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}
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return nil
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}