updated gitlab to cache devops tool build

.gitlab-ci.yml

@@ -7,7 +7,7 @@ variables:
   DOCKER_TLS_CERTDIR: ""
 
 before_script:
-  - 'cd ./tools/devops && make install && cd ../../'
+  - './tools/devops/scripts/build.sh'
 
 stages:
   - build:dev

tools/devops/Dockerfile

@@ -0,0 +1,24 @@
+FROM golang:1.12.6-alpine3.9
+
+LABEL maintainer="lee@geeksinthewoods.com"
+
+RUN apk --update --no-cache add \
+            git
+
+# Change dir to project base.
+WORKDIR $GOPATH/src/gitlab.com/geeks-accelerator/oss/saas-starter-kit
+
+# Enable go modules.
+ENV GO111MODULE="on"
+COPY go.mod .
+COPY go.sum .
+RUN go mod download
+
+COPY internal ./internal
+COPY tools/devops ./tools/devops
+
+WORKDIR ./tools/devops
+
+RUN CGO_ENABLED=0 GOOS=linux go build -a -installsuffix nocgo -o /devops .
+
+ENTRYPOINT ["/devops"]

tools/devops/scripts/build.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+doPush=0
+if [[ "${CI_REGISTRY_USER}" != "" ]]; then
+    docker login -u ${CI_REGISTRY_USER} -p ${CI_REGISTRY_PASSWORD}
+
+    releaseImg="${CI_REGISTRY_IMAGE}:devops-${CI_COMMIT_REF_NAME}"
+    doPush=1
+else :
+    releaseImg="devops"
+fi
+
+echo "release image: ${releaseImg}"
+
+docker pull ${releaseImg} || true
+
+docker build -f tools/devops/Dockerfile --cache-from ${releaseImg} -t ${releaseImg} .
+
+if [[ $doPush == 1 ]]; then
+    docker push ${releaseImg}
+fi
+
+binPath=$GOROOT/bin/devops
+echo "installing to: ${binPath}"
+
+docker run --rm --entrypoint=cat devops /devops > $binPath