use tmp dir for config

Author: idoqo

.gitignore

@@ -13,4 +13,4 @@ mongodb_exporter
 .DS_Store
 
 docker/kerberos/cache/*
-docker/kerberos/conf/*
+

Makefile

@@ -108,7 +108,6 @@ test-cover: env              ## Run tests and collect cross-package coverage inf
 	go test -tags gssapi -race -timeout 30s -coverprofile=cover.out -covermode=atomic -coverpkg=./... ./...
 
 test-cluster: env           ## Starts MongoDB test cluster. Use env var TEST_MONGODB_IMAGE to set flavor and version. Example: TEST_MONGODB_IMAGE=mongo:3.6 make test-cluster
-	touch ./docker/kerberos/cache/krb5.conf
 	docker compose up --build -d
 	./docker/scripts/init-psmdb-kerberos.sh
 	./docker/scripts/init-pbm.sh

docker-compose.yml

@@ -295,12 +295,12 @@ services:
             - KRB5_TRACE=/dev/stderr
             - MONGO_HOST=psmdb-kerberos
             - KERBEROS_HOST=kerberos
+            - KRB5_CONFIG=/tmp/krb5.conf
             - MONGO_KERBEROS_USERNAME=pmm-test
             - MONGO_KERBEROS_PASSWORD=password1
         depends_on:
             -   psmdb-kerberos
         volumes:
-            - ./docker/kerberos/conf/krb5.conf:/etc/krb5.conf
             - ./docker/kerberos/cache:/tmp/
             - ./docker/scripts:/scripts
         ports:
@@ -321,11 +321,11 @@ services:
         environment:
             - KRB5_KTNAME=/tmp/mongodb.keytab
             - KRB5CCNAME=/tmp/krb5cc_0
+            - KRB5_CONFIG=/tmp/krb5.conf
             - MONGO_INITDB_ROOT_USERNAME=admin
             - MONGO_INITDB_ROOT_PASSWORD=adminpassword
             - MONGODB_HOST=psmdb-kerberos
         volumes:
-            - ./docker/kerberos/conf/krb5.conf:/etc/krb5.conf
             - ./docker/scripts:/scripts
             - ./docker/kerberos/cache:/tmp/
         command: >

docker/scripts/setup-krb5-server.sh

@@ -4,7 +4,7 @@ mongohost=`getent hosts ${MONGO_HOST} | awk '{ print $1 }'`
 kerberos_host=`getent hosts ${KERBEROS_HOST} | awk '{ print $1 }'`
 gateway_ip=`ip route | grep default | awk '{print $3}'`
 
-cat > /etc/krb5.conf <<EOL
+cat > /tmp/krb5.conf <<EOL
 [libdefaults]
     default_realm = PERCONATEST.COM
     forwardable = true