[Bug 1575572] Re: apache2 fails to start if installed via cloud config (on Xenial)

[Dominique Poulain]

The fix seems to work for me. Here's what I did to check:

I used a VM (xenial_test) booted from a pristine copy of the image at
<https://uec-images.ubuntu.com/xenial/20160528/xenial-server-cloudimg-
amd64-disk1.img> in a local OpenStack environment to verify the fix. I
modified the VM to enable -proposed, and upgraded init-system-helpers to
the -proposed package:

sudo apt-get install init-system-helpers=1.29ubuntu2

I then shut down the VM and generated a new image from it:

nova image-create xenial_test lp1575572-test-img

Finally, I tested with both Cloud Config data and User-Data script
syntax:

1) Cloud Config

cat cloud_conf.yaml 
#cloud-config
packages:
- apache2
runcmd:
- "nc -k -l -d 443&"

 nova boot --key-name $KEY --flavor m1.small --image lp1575572-test-img
--user-data cloud_conf.yaml lp1575572-test-vm

SSH-ing to the instance:

$ sudo systemctl status apache2
● apache2.service - LSB: Apache2 web server
   Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
  Drop-In: /lib/systemd/system/apache2.service.d
           └─apache2-systemd.conf
   Active: active (running) since Tue 2016-05-31 07:23:45 UTC; 40s ago
     Docs: man:systemd-sysv-generator(8)
    Tasks: 55
   Memory: 6.5M
      CPU: 87ms
   CGroup: /system.slice/apache2.service
           ├─2321 /usr/sbin/apache2 -k start
           ├─2324 /usr/sbin/apache2 -k start
           └─2325 /usr/sbin/apache2 -k start

May 31 07:23:44 lp1575572-test-vm systemd[1]: Starting LSB: Apache2 web server...
May 31 07:23:44 lp1575572-test-vm apache2[2297]:  * Starting Apache httpd web server apache2
May 31 07:23:45 lp1575572-test-vm apache2[2297]:  *
May 31 07:23:45 lp1575572-test-vm systemd[1]: Started LSB: Apache2 web server.

# ==> pass


2) User Data

$ cat user-data.sh 
#!/bin/sh 

output_runlevel() { 
echo -n "Current runlevel is " 
sudo /sbin/runlevel 
} 
output_runlevel 
sudo DEBIAN_FRONTEND=noninteractive apt-get -q -y update 
#sudo sed -ie 's/set +e$/& -x/' /usr/sbin/invoke-rc.d 
output_runlevel 
sudo DEBIAN_FRONTEND=noninteractive apt-get install -q -y apache2 
output_runlevel 
sudo nc -k -l -d 443&

nova boot --key-name $KEY --flavor m1.small --image lp1575572-test-img
--user-data user-data.sh lp1575572-test-vm

SSH-ing to the instance:

$ sudo systemctl status apache2
● apache2.service - LSB: Apache2 web server
   Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
  Drop-In: /lib/systemd/system/apache2.service.d
           └─apache2-systemd.conf
   Active: active (running) since Tue 2016-05-31 07:29:40 UTC; 1min 20s ago
     Docs: man:systemd-sysv-generator(8)
    Tasks: 55
   Memory: 6.6M
      CPU: 119ms
   CGroup: /system.slice/apache2.service
           ├─2332 /usr/sbin/apache2 -k start
           ├─2335 /usr/sbin/apache2 -k start
           └─2336 /usr/sbin/apache2 -k start

May 31 07:29:38 lp1575572-test-vm systemd[1]: Starting LSB: Apache2 web server...
May 31 07:29:38 lp1575572-test-vm apache2[2308]:  * Starting Apache httpd web server apache2
May 31 07:29:40 lp1575572-test-vm apache2[2308]:  *
May 31 07:29:40 lp1575572-test-vm systemd[1]: Started LSB: Apache2 web server.


# ==> pass

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https://bugs.launchpad.net/bugs/1575572

Title:
  apache2 fails to start if installed via cloud config (on Xenial)

Status in init-system-helpers package in Ubuntu:
  Fix Released
Status in systemd package in Ubuntu:
  Triaged
Status in init-system-helpers source package in Xenial:
  Fix Committed
Status in systemd source package in Xenial:
  Won't Fix
Status in systemd package in Debian:
  Confirmed

Bug description:
  SRU TEST CASE:

  Using the following cloud config, apache2 will fail to start on
  installation on Xenial:

  #cloud-config
  packages:
  - apache2

  See for example:

  $ gcloud compute instances create xenial-$(date +%y%m%d-%H%M) --image ubuntu-1604-xenial-v20160420c --image-project ubuntu-os-cloud --metadata-from-file user-data=cloud-config
  NAME                ZONE            MACHINE_TYPE   PREEMPTIBLE  INTERNAL_IP  EXTERNAL_IP    STATUS
  xenial-160427-1050  europe-west1-d  n1-standard-1               10.240.0.7   104.155.86.94  RUNNING

  $ ssh ubuntu at 104.155.86.94 systemctl status apache2.service
  ● apache2.service - LSB: Apache2 web server
     Loaded: loaded (/etc/init.d/apache2; bad; vendor preset: enabled)
    Drop-In: /lib/systemd/system/apache2.service.d
             └─apache2-systemd.conf
     Active: inactive (dead)
       Docs: man:systemd-sysv-generator(8)

  With the fixed init-system-helpers, apache2.service (or any other
  service you install via "packages:") should start correctly.

  Related Bugs:
   * bug 1576692: [cloud-init] fully support package installation in systemd

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