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faas-cli template store pull golang-middleware
faas-cli new --lang golang-middleware \ build-test --prefix=alexellis2

./├── build-test│ └── handler.go└── build-test.yml
1 directory, 2 files

package function
import ( "fmt" "io/ioutil" "net/http")
func Handle(w http.ResponseWriter, r *http.Request) { var input []byte
 if r.Body != nil { defer r.Body.Close()
 body, _ := ioutil.ReadAll(r.Body)
 input = body }
 w.WriteHeader(http.StatusOK) w.Write([]byte(fmt.Sprintf("Hello world, input was: %s", string(input))))}

faas-cli build -f build-test.yml

FROM openfaas/of-watchdog:0.7.3 as watchdogFROM golang:1.13-alpine3.11 as buildFROM alpine:3.12

DOCKER_BUILDKIT=1 faas-cli build -f build-test.yml

FROM openfaas/of-watchdog:0.7.3 as watchdogFROM golang:1.13-alpine3.11 as buildFROM alpine:3.11

faas-cli build -f build-test.yml --shrinkwrap
[0] > Building build-test.Clearing temporary build folder: ./build/build-test/Preparing ./build-test/ ./build/build-test//functionBuilding: alexellis2/build-test:latest with golang-middleware template. Please wait..build-test shrink-wrapped to ./build/build-test/[0] < Building build-test done in 0.00s.[0] Worker done.
Total build time: 0.00

./build/build-test/├── Dockerfile├── function│ └── handler.go├── go.mod├── main.go└── template.yml
1 directory, 5 files

curl -sSLf https://github.com/moby/buildkit/releases/download/v0.6.3/buildkit-v0.6.3.linux-amd64.tar.gz | sudo tar -xz -C /usr/local/bin/ --strip-components=1

sudo buildkitd WARN[0000] using host network as the default INFO[0000] found worker "l1ltft74h0ek1718gitwghjxy", labels=map[org.mobyproject.buildkit.worker.executor:oci org.mobyproject.buildkit.worker.hostname:nuc org.mobyproject.buildkit.worker.snapshotter:overlayfs], platforms=[linux/amd64 linux/386] WARN[0000] skipping containerd worker, as "/run/containerd/containerd.sock" does not exist INFO[0000] found 1 workers, default="l1ltft74h0ek1718gitwghjxy" WARN[0000] currently, only the default worker can be used. INFO[0000] running server on /run/buildkit/buildkitd.sock

buildctl build --helpNAME: buildctl build - build
USAGE:
 To build and push an image using Dockerfile: $ buildctl build --frontend dockerfile.v0 --opt target=foo --opt build-arg:foo=bar --local context=. --local dockerfile=. --output type=image,name=docker.io/username/image,push=true

OPTIONS: --output value, -o value Define exports for build result, e.g. --output type=image,name=docker.io/username/image,push=true --progress value Set type of progress (auto, plain, tty). Use plain to show container output (default: "auto") --trace value Path to trace file. Defaults to no tracing. --local value Allow build access to the local directory --frontend value Define frontend used for build --opt value Define custom options for frontend, e.g. --opt target=foo --opt build-arg:foo=bar --no-cache Disable cache for all the vertices --export-cache value Export build cache, e.g. --export-cache type=registry,ref=example.com/foo/bar, or --export-cache type=local,dest=path/to/dir --import-cache value Import build cache, e.g. --import-cache type=registry,ref=example.com/foo/bar, or --import-cache type=local,src=path/to/dir --secret value Secret value exposed to the build. Format id=secretname,src=filepath --allow value Allow extra privileged entitlement, e.g. network.host, security.insecure --ssh value Allow forwarding SSH agent to the builder. Format default|<id>[=<socket>|<key>[,<key>]]

sudo -E buildctl build --frontend dockerfile.v0 \ --local context=./build/build-test/ \ --local dockerfile=./build/build-test/ \ --output type=image,name=docker.io/alexellis2/build-test:latest,push=true

sudo curl -fSL "https://github.com/genuinetools/img/releases/download/v0.5.7/img-linux-amd64" -o "/usr/local/bin/img" \ && sudo chmod a+x "/usr/local/bin/img"

img build --helpUsage: img build [OPTIONS] PATH
Build an image from a Dockerfile.
Flags:
 -b, --backend backend for snapshots ([auto native overlayfs]) (default: auto) --build-arg Set build-time variables (default: []) -d, --debug enable debug logging (default: false) -f, --file Name of the Dockerfile (Default is 'PATH/Dockerfile') (default: <none>) --label Set metadata for an image (default: []) --no-cache Do not use cache when building the image (default: false) --no-console Use non-console progress UI (default: false) --platform Set platforms for which the image should be built (default: []) -s, --state directory to hold the global state (default: /home/alex/.local/share/img) -t, --tag Name and optionally a tag in the 'name:tag' format (default: []) --target Set the target build stage to build (default: <none>)

sudo img build -f ./build/build-test/Dockerfile -t alexellis2/build-test:latest ./build/build-test/

fatal error: unexpected signal during runtime execution[signal SIGSEGV: segmentation violation code=0x1 addr=0xe5 pc=0x7f84d067c420]
runtime stack:runtime.throw(0xfa127f, 0x2a) /home/travis/.gimme/versions/go1.11.10.linux.amd64/src/runtime/panic.go:608 +0x72runtime.sigpanic() /home/travis/.gimme/versions/go1.11.10.linux.amd64/src/runtime/signal_unix.go:374 +0x2f2
goroutine 529 [syscall]:runtime.cgocall(0xc9d980, 0xc00072d7d8, 0x29) /home/travis/.gimme/versions/go1.11.10.linux.amd64/src/runtime/cgocall.go:128 +0x5e fp=0xc00072d7a0 sp=0xc00072d768 pc=0x4039eeos/user._Cfunc_mygetgrgid_r(0x2a, 0xc000232260, 0x7f84a40008c0, 0x400, 0xc0004ba198, 0xc000000000)

docker run -v $PWD/build/build-test:/workspace \ -v ~/.docker/config.json:/kaniko/config.json \ --env DOCKER_CONFIG=/kaniko \ gcr.io/kaniko-project/executor:latest \ -d alexellis2/build-test:latest