jenkins: Stop docker container after 18m (#2358)

* remove unnecessary argument

* remove kademlia lookup short circuiting

* fix ident

* add timeout to docker container

* add comments to dockerfile

Dockerfile.jenkins

@@ -1,5 +1,7 @@
 FROM golang:1.12
 
+# Postgres
+
 RUN curl https://www.postgresql.org/media/keys/ACCC4CF8.asc | apt-key add -
 RUN echo "deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main" | tee /etc/apt/sources.list.d/pgdg.list
 
@@ -14,6 +16,8 @@ RUN rm /etc/postgresql/11/main/pg_hba.conf; \
 
 RUN echo 'max_connections = 1000' >> /etc/postgresql/11/main/conf.d/connectionlimits.conf
 
+# Tooling
+
 COPY ./scripts/install-awscli.sh /tmp/install-awscli.sh
 RUN bash /tmp/install-awscli.sh
 ENV PATH "$PATH:/root/bin"
@@ -21,15 +25,20 @@ ENV PATH "$PATH:/root/bin"
 RUN curl -L https://github.com/google/protobuf/releases/download/v3.6.1/protoc-3.6.1-linux-x86_64.zip -o /tmp/protoc.zip
 RUN unzip /tmp/protoc.zip -d "$HOME"/protoc
 
+# Linters
+
 RUN curl -sfL https://install.goreleaser.com/github.com/golangci/golangci-lint.sh | bash -s -- -b ${GOPATH}/bin v1.17.1
 RUN go get github.com/ckaznocha/protoc-gen-lint
 RUN go get github.com/nilslice/protolock/cmd/protolock
-RUN go get github.com/mfridman/tparse
 RUN go get github.com/josephspurrier/goversioninfo
+RUN go get github.com/loov/leakcheck
 
+# Output formatters
+
+RUN go get github.com/mfridman/tparse
 RUN go get github.com/axw/gocov/gocov
 RUN go get github.com/AlekSi/gocov-xml
 
-RUN go get -v -u github.com/loov/leakcheck
+# Set our entrypoint to close after 18 minutes, and forcefully close at 20 minutes.
-
+# This is to prevent Jenkins collecting cats.
-RUN go version
+ENTRYPOINT ["timeout", "-k20m", "18m"]

Jenkinsfile.gerrit

@@ -2,7 +2,7 @@ pipeline {
     agent {
         dockerfile {
             filename 'Dockerfile.jenkins'
-            args '-u root:root --stop-timeout 1200 --cap-add SYS_PTRACE -v "/tmp/gomod":/go/pkg/mod'
+            args '-u root:root --cap-add SYS_PTRACE -v "/tmp/gomod":/go/pkg/mod'
             label 'gerrit'
         }
     }
@@ -21,7 +21,7 @@ pipeline {
             steps {
                 checkout scm
 
-                sh 'mkdir .build'
+                sh 'mkdir -p .build'
 
                 // make a backup of the mod file in case, for later linting
                 sh 'cp go.mod .build/go.mod.orig'

Jenkinsfile.public

@@ -2,7 +2,7 @@ pipeline {
     agent {
         dockerfile {
             filename 'Dockerfile.jenkins'
-            args '-u root:root --stop-timeout 1200 --cap-add SYS_PTRACE -v "/tmp/gomod":/go/pkg/mod'
+            args '-u root:root --cap-add SYS_PTRACE -v "/tmp/gomod":/go/pkg/mod'
             label 'main'
         }
     }
@@ -14,7 +14,7 @@ pipeline {
             steps {
                 checkout scm
 
-                sh 'mkdir .build'
+                sh 'mkdir -p .build'
 
                 // make a backup of the mod file in case, for later linting
                 sh 'cp go.mod .build/go.mod.orig'

pkg/kademlia/peer_discovery.go

@@ -96,11 +96,6 @@ func (lookup *peerDiscovery) Run(ctx context.Context) (_ []*pb.Node, err error)
 						)
 					}
 				} else {
-					if next.Id == lookup.target {
-						lookup.cond.L.Lock()
-						allDone = true
-						lookup.cond.L.Unlock()
-					}
 					lookup.queue.QuerySuccess(next, neighbors...)
 				}