fix acceptance tests on noble

acceptance/instance_ssh.go

@@ -55,6 +55,8 @@ Host docker-vm
 	Hostname %s
 	User %s
 	StrictHostKeyChecking no
+	UserKnownHostsFile /dev/null
+	GlobalKnownHostsFile /dev/null
     IdentityFile %s
 `
 	sshConfig := fmt.Sprintf(

acceptance/lifecycle_test.go

@@ -145,7 +145,8 @@ var _ = Describe("bosh", func() {
 	}
 
 	var shutdownAgent = func() {
-		_, _, exitCode, err := instanceSSH.RunCommandWithSudo("sv stop agent")
+		// noble stemcells supervise the agent with systemd; earlier ones used runit ('sv stop agent')
+		_, _, exitCode, err := instanceSSH.RunCommandWithSudo("systemctl stop agent")
 		Expect(err).ToNot(HaveOccurred())
 		Expect(exitCode).To(Equal(0))
 	}

docs/test.md

@@ -19,7 +19,7 @@ build on the pipeline's `test-acceptance` job to pick up its image, CPI release
 and stemcell, and override only the source under test:
 
 ```bash
-./fly -t bosh execute -p \
+fly -t bosh execute -p \
   -c ci/tasks/test-acceptance.yml \
   --inputs-from bosh-cli/test-acceptance \
   --image docker-cpi-image \