Mount only the .ssh directory and do no copy contents of RSA key

- Remove code that copied the keys in another file called id_rsa
- Since the current host user is the user inside docker now, there should be no permission issues to read the SSH key and add the keys to the agent.

bin/docker-execute

@@ -17,7 +17,7 @@ echo "package: $2"
 echo "Image: $IMAGE_NAME"
 echo "UID: $(id -u)"
 echo "GID: $(id -g)"
-rm -rf $(pwd)/id_rsa
+
 cat ~/.ssh/gerrit > $(pwd)/id_rsa
 # Enable docker buildkit with inline cache builds
 export DOCKER_BUILDKIT=1
@@ -233,7 +233,6 @@ docker run --privileged=true -dit \
   -v "$(pwd)/omnibus/script:$CODE_DIR/omnibus/script" \
   -v "$(pwd)/tmp:$CODE_DIR/tmp" \
   -v "${HOME}/.ssh:/home/dependabot/.ssh:ro" \
-  -v "$(pwd)/id_rsa:$CODE_DIR/id_rsa" \
   --name "$CONTAINER_NAME" \
   -e SSH_AUTH_SOCK=$SSH_AUTH_SOCK \
   -e PACKAGE_NAME=$PACKAGE_NAME \
@@ -254,8 +253,6 @@ echo "UID: $(id -u)"
 echo "GID: $(id -g)"
 whoami;
 eval $(ssh-agent -s);
-ssh-add /home/dependabot/dependabot-core/id_rsa;
-ssh-add /home/dependabot/.ssh/$(echo $(cat /home/dependabot/.ssh/config | grep IdentityFile) | cut -d " " -f 2 | cut -d "/" -f 3);
 for c in $(ssh -p 29418 -o "StrictHostKeyChecking no" [email protected] gerrit query --current-patch-set project:${REPO_NAME} branch:feature/dependabot | grep revision | tr -s " " | cut -d " " -f 3); \
 
  do ssh -p 29418 [email protected] gerrit review $c --abandon; \