add container builds for each push to main (sigstore#1269)

* add container builds for each push to main

Signed-off-by: Bob Callaway <bcallaway@google.com>

* fix LDFLAGS

Signed-off-by: Bob Callaway <bcallaway@google.com>

---------

Signed-off-by: Bob Callaway <bcallaway@google.com>

Author: bobcallaway

.github/workflows/container-build.yml

@@ -0,0 +1,59 @@
+#
+# Copyright 2023 The Sigstore Authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+name: CI-Container-Build
+
+on:
+  workflow_dispatch:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+
+    permissions:
+      id-token: write
+      contents: read
+
+    steps:
+      - uses: actions/checkout@c85c95e3d7251135ab7dc9ce3241c5835cc595a9 # v3.5.3
+      - uses: sigstore/cosign-installer@6e04d228eb30da1757ee4e1dd75a0ec73a653e06 # v3.1.1
+
+      - name: Extract version of Go to use
+        run: echo "GOVERSION=$(cat Dockerfile|grep golang | awk ' { print $2 } ' | cut -d '@' -f 1 | cut -d ':' -f 2 | uniq)" >> $GITHUB_ENV
+
+      - uses: actions/setup-go@fac708d6674e30b6ba41289acaab6d4b75aa0753 # v4.0.1
+        with:
+          go-version: ${{ env.GOVERSION }}
+
+      - name: deps
+        run: sudo apt-get update && sudo apt-get install -yq libpcsclite-dev
+
+      - uses: ko-build/setup-ko@ace48d793556083a76f1e3e6068850c1f4a369aa # v0.6
+
+      - name: Set up Cloud SDK
+        uses: google-github-actions/auth@35b0e87d162680511bf346c299f71c9c5c379033 # v1.1.1
+        with:
+          workload_identity_provider: 'projects/498091336538/locations/global/workloadIdentityPools/githubactions/providers/sigstore-fulcio'
+          service_account: 'github-actions-fulcio@projectsigstore.iam.gserviceaccount.com'
+
+      - name: creds
+        run: gcloud auth configure-docker --quiet
+
+      - name: container
+        run: KO_PREFIX=gcr.io/projectsigstore/fulcio/ci/fulcio make sign-keyless-ci

Makefile

@@ -118,6 +118,14 @@ $(PROTOC-API-LINTER): $(TOOLS_DIR)/go.mod
 ## Images with ko
 ## --------------------------------------
 
+.PHONY: ko
+ko:
+	# fulcio
+	LDFLAGS="$(LDFLAGS)" GIT_HASH=$(GIT_HASH) GIT_VERSION=$(GIT_VERSION) \
+	KO_DOCKER_REPO=$(KO_PREFIX)/fulcio ko resolve --bare \
+		--platform=linux/amd64 --tags $(GIT_VERSION) --tags $(GIT_HASH) \
+		--image-refs fulcioImagerefs --filename config/ > $(FULCIO_YAML)
+
 .PHONY: ko-local
 ko-local:
 	LDFLAGS="$(LDFLAGS)" GIT_HASH=$(GIT_HASH) GIT_VERSION=$(GIT_VERSION) \
@@ -137,6 +145,10 @@ ko-apply-ci: ko-apply
 ko-publish:
 	LDFLAGS="$(LDFLAGS)" GIT_HASH=$(GIT_HASH) GIT_VERSION=$(GIT_VERSION) ko publish .
 
+.PHONY: sign-keyless-ci
+sign-keyless-ci: ko
+	cosign sign --yes -a GIT_HASH=$(GIT_HASH) $(KO_DOCKER_REPO)/fulcio:$(GIT_HASH)
+
 ## --------------------------------------
 ## Modules
 ## --------------------------------------