A few more fixes to get Jenkins CI builds running

Dockerfile.test

@@ -3,5 +3,7 @@ FROM golang:1.10-stretch
 WORKDIR /go/src/github.com/percona/mongodb-backup
 COPY . .
 
-RUN go get ./...
-CMD go test -v ./...
+RUN go get -v ./...
+
+USER nobody
+CMD GOCACHE=off go test -race -coverprofile=/tmp/cover.out -covermode=atomic -v ./...

docker-compose.yml

@@ -3,15 +3,29 @@ version: '3'
 services:
   mongo:
     image: percona/percona-server-mongodb:${TEST_PSMDB_VERSION:-latest}
+    command: --replSet=${TEST_PSMDB_RSNAME:-rs} --bind_ip=0.0.0.0 --bind_ip_all
     expose:
-      - 27017
+    - "27017"
+  init:
+    image: percona/percona-server-mongodb:${TEST_PSMDB_VERSION:-latest}
+    entrypoint: /init-replset.sh
+    volumes:
+    - ./test/init-replset.sh:/init-replset.sh
+    environment:
+    - TEST_MONGODB_URI=mongo:27017
+    - TEST_PSMDB_RSNAME=${TEST_PSMDB_RSNAME:-rs}
+    links:
+    - mongo
+    depends_on:
+    - mongo
   test:
     build:
       dockerfile: Dockerfile.test
       context: .
     environment:
-      - TEST_MONGODB_URI=mongo:27017 
+    - TEST_MONGODB_URI=mongo:27017
     links:
-      - mongo
+    - mongo
     depends_on:
-      - mongo
+    - init
+    - mongo

internal/oplog/oplog_tail_test.go

@@ -49,9 +49,12 @@ func init() {
 	}
 
 	// get db uri from environment if it exists
-	dbUri := strings.TrimSpace(os.Getenv(EnvDBUri))
-	if dbUri == "" {
+	dbUri = strings.TrimSpace(os.Getenv(EnvDBUri))
+	if dbUri != "" {
+		fmt.Printf("Using mongodb uri from environment: %s\n", dbUri)
+	} else {
 		dbUri = dbDefaultUri
+		fmt.Printf("Using default mongodb uri: %s\n", dbUri)
 	}
 
 	if testing.Verbose() {

test/init-replset.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+
+tries=1
+max_tries=15
+sleep_secs=5
+
+sleep $sleep_secs
+while [ $tries -lt $max_tries ]; do
+	/usr/bin/mongo --quiet \
+		--host ${TEST_MONGODB_URI} \
+		--eval 'rs.initiate({
+			_id: "'${TEST_PSMDB_RSNAME}'",
+			version: 1,
+			members: [
+				{ _id: 0, host: "'${TEST_MONGODB_URI}'" }
+			]})'
+	[ $? == 0 ] && break
+	echo "# INFO: retrying rs.initiate() in $sleep_secs secs (try $tries/$max_tries)"
+	sleep $sleep_secs
+	tries=$(($tries + 1))
+done
+if [ $tries -ge $max_tries ]; then
+	echo "# ERROR: reached max tries $max_tries, exiting"
+	exit 1
+fi
+
+sleep $sleep_secs
+tries=1
+while [ $tries -lt $max_tries ]; do
+	ISMASTER=$(/usr/bin/mongo --quiet \
+		--host ${TEST_MONGODB_URI} \
+		--eval 'printjson(db.isMaster().ismaster)' 2>/dev/null)
+	[ "$ISMASTER" == "true" ] && break
+	echo "# INFO: retrying db.isMaster() check in $sleep_secs secs (try $tries/$max_tries)"
+	sleep $sleep_secs
+	tries=$(($tries + 1))
+done
+if [ $tries -ge $max_tries ]; then
+	echo "# ERROR: reached max tries $max_tries, exiting"
+	exit 1
+fi