pkg: Remove metadata-gcp

It's no longer used

Signed-off-by: Rolf Neugebauer <rolf.neugebauer@docker.com>

pkg/metadata-gcp/.gitignore

@@ -1,4 +0,0 @@
-dev
-proc
-sys
-usr

pkg/metadata-gcp/Dockerfile

@@ -1,3 +0,0 @@
-FROM scratch
-COPY . ./
-CMD ["/usr/bin/metadata-gcp"]

pkg/metadata-gcp/Makefile

@@ -1,44 +0,0 @@
-GO_COMPILE=mobylinux/go-compile:3afebc59c5cde31024493c3f91e6102d584a30b9@sha256:e0786141ea7df8ba5735b63f2a24b4ade9eae5a02b0e04c4fca33b425ec69b0a
-
-SHA_IMAGE=alpine:3.5@sha256:dfbd4a3a8ebca874ebd2474f044a0b33600d4523d03b0df76e5c5986cb02d7e8
-
-METADATA_BINARY=usr/bin/metadata-gcp
-
-IMAGE=metadata-gcp
-
-.PHONY: tag push clean container
-default: push
-
-$(METADATA_BINARY): gcp.go
-	mkdir -p $(dir $@)
-	tar cf - $^ | docker run --rm --net=none --log-driver=none -i $(GO_COMPILE) -o $@ | tar xf -
-
-DIRS=dev proc sys
-$(DIRS):
-	mkdir -p $@
-
-DEPS=$(DIRS) $(METADATA_BINARY)
-
-container: Dockerfile $(DEPS)
-	tar cf - $^ | docker build --no-cache -t $(IMAGE):build -
-
-hash: Dockerfile $(DEPS)
-	find $^ -type f | xargs cat | docker run --rm -i $(SHA_IMAGE) sha1sum - | sed 's/ .*//' > hash
-
-push: hash container
-	docker pull mobylinux/$(IMAGE):$(shell cat hash) || \
-		(docker tag $(IMAGE):build mobylinux/$(IMAGE):$(shell cat hash) && \
-		 docker push mobylinux/$(IMAGE):$(shell cat hash))
-	docker rmi $(IMAGE):build
-	rm -f hash
-
-tag: hash container
-	docker pull mobylinux/$(IMAGE):$(shell cat hash) || \
-		docker tag $(IMAGE):build mobylinux/$(IMAGE):$(shell cat hash)
-	docker rmi $(IMAGE):build
-	rm -f hash
-
-clean:
-	rm -rf hash $(DIRS) usr
-
-.DELETE_ON_ERROR:

pkg/metadata-gcp/gcp.go

@@ -1,75 +0,0 @@
-package main
-
-import (
-	"io/ioutil"
-	"log"
-	"net/http"
-	"strings"
-	"syscall"
-	"time"
-)
-
-const (
-	project  = "http://metadata.google.internal/computeMetadata/v1/project/"
-	instance = "http://metadata.google.internal/computeMetadata/v1/instance/"
-)
-
-// If optional not set, will panic. Optional will allow 404
-// We assume most failure cases are that this code is included in a non Google Cloud
-// environment, which should generally be ok, so just fail fast.
-func metadata(url string, optional bool) []byte {
-	var client = &http.Client{
-		Timeout: time.Second * 2,
-	}
-
-	req, err := http.NewRequest("", url, nil)
-	if err != nil {
-		log.Fatalf("http NewRequest failed: %v", err)
-	}
-	req.Header.Set("Metadata-Flavor", "Google")
-
-	resp, err := client.Do(req)
-	if err != nil {
-		// Probably not running on Google Cloud but this package included
-		log.Fatalf("Could not contact Google Cloud Metadata service: %v", err)
-	}
-	if optional && resp.StatusCode == 404 {
-		return []byte{}
-	}
-	if resp.StatusCode != 200 {
-		// Probably not running on Google Cloud but this package included
-		log.Fatalf("Google Cloud Metadata Server http error: %s", resp.Status)
-	}
-	body, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		log.Fatalf("Failed to read http response: %v", err)
-	}
-	return body
-}
-
-func main() {
-	hostname := metadata(instance+"hostname", false)
-	err := syscall.Sethostname(hostname)
-	if err != nil {
-		log.Printf("Failed to set hostname: %v", err)
-	}
-	sshKeys := metadata(project+"attributes/sshKeys", true)
-	// TODO also retrieve the instance keys and respect block project keys see https://cloud.google.com/compute/docs/instances/ssh-keys
-
-	// the keys have usernames attached, but as a simplification we are going to add them all to one root file
-	// TODO split them into individual user files and make the ssh container construct those users
-
-	rootKeys := ""
-	for _, line := range strings.Split(string(sshKeys), "\n") {
-		parts := strings.SplitN(line, ":", 2)
-		// ignoring username for now
-		if len(parts) == 2 {
-			rootKeys = rootKeys + parts[1] + "\n"
-		}
-	}
-
-	err = ioutil.WriteFile("/etc/ssh/authorized_keys", []byte(rootKeys), 0600)
-	if err != nil {
-		log.Printf("Failed to write ssh keys: %v", err)
-	}
-}