[ClusterLabs] Unable to start Apache resource

[Bartosz Kaczyński]

Greetings,

I am facing an issue with launching a primitive resource in a two-node
Pacemaker/Corosync cluster. I have set up a lab environment based on the
guidelines from the "Say Goodbye to Downtime with SUSE Linux Enterprise
Server (Repeat)" [1] course.

In my lab environment, I am using openSUSE Leap 15.5.
Steps I have taken so far:

- Created an IP resource

--8<---------------cut here---------------start------------->8---
crm configure
primitive p-IP_101 IPaddr2 \
          params ip=172.17.17.101 cidr_netmask=24 nic=bond1 \
          op start timeout=20s interval=0 \
          op stop timeout=20s interval=0 \
          op monitor  timeout=20s interval=10s \
          meta target-role=Started
commit
--8<---------------cut here---------------end--------------->8---


- Created an Apache resource

crm configure edit # and added following content of the bottom of the
file

--8<---------------cut here---------------start------------->8---
primitive p-apache2_1 apache \
          params configfile="/etc/apache2/http_1.conf" \
          statusurl="172.17.17.101:8180" \
          op start interval=0 timeout=40 \
          op stop interval=0 timeout=60 \
          op monitor interval=10 timeout=20
--8<---------------cut here---------------end--------------->8---

- Edited the Apache configuration files

cp /etc/apache2/httpd.conf /etc/apache2/httpd_1.conf
cp /etc/apache2/listen.conf /etc/apache2/listen_1.conf

vi /etc/apache2/httpd_1.conf

--8<---------------cut here---------------start------------->8---
Include /etc/apache2/listen_1.conf

--snip--
Pidfile /var/run/httpd_1.pid
--8<---------------cut here---------------end--------------->8---

vi /etc/apache2/listen_1.conf

--8<---------------cut here---------------start------------->8---
Listen 172.17.17.101:8180


<IfDefine SSL>
        <IfDefine !NOSSL>
        <IfModule mod_ssl.c>

                Listen 172.17.17.101:8443

        </IfModule>
        </IfDefine>
</IfDefine>
--8<---------------cut here---------------end--------------->8---


- Ensured file synchronization using csync2
- Created a resource group with primitives for the IP and Apache resources

--8<---------------cut here---------------start------------->8---
crm configure
group g-apache2_1 p-IP_101 p-apache2_1 description="Apache2 Instance 1"
commit
--8<---------------cut here---------------end--------------->8---

- Started the resources, resulting in an error (logs provided below)

--8<---------------cut here---------------start------------->8---
Failed Resource Actions:
  * p-apache2_1_start_0 on node01 'not installed' (5): call=24, status='complete', exitreason='environment is invalid, resource considered stopped', last-rc-change='Tue Sep 19 17:17:49 2023', queued=0ms, exec=39ms
  * p-apache2_1_start_0 on node02 'not installed' (5): call=26, status='complete', exitreason='environment is invalid, resource considered stopped', last-rc-change='Tue Sep 19 15:46:48 2023', queued=0ms, exec=40ms
--8<---------------cut here---------------end--------------->8---

--8<---------------cut here---------------start------------->8---
crm configure rsctest p-apache2_1 
INFO: Probing resources
INFO: Testing on node01: p-apache2_1
ERROR: host node01 (exit code 5)

INFO: Testing on node02: p-apache2_1
ERROR: host node02 (exit code 5)
--8<---------------cut here---------------end--------------->8---


The Apache server is installed on both nodes

--8<---------------cut here---------------start------------->8---
node01:~ # zypper se -i apache2
Loading repository data...
Reading installed packages...

S  | Name            | Summary                                          | Type
---+-----------------+--------------------------------------------------+--------
i+ | apache2         | The Apache Web Server                            | package
i  | apache2-prefork | Apache 2 "prefork" MPM (Multi-Processing Module) | package
i  | apache2-utils   | Apache 2 utilities                               | package
node01:~ # ssh node02 zypper se -i apache2
Loading repository data...
Reading installed packages...

S  | Name            | Summary                                          | Type
---+-----------------+--------------------------------------------------+--------
i+ | apache2         | The Apache Web Server                            | package
i  | apache2-prefork | Apache 2 "prefork" MPM (Multi-Processing Module) | package
i  | apache2-utils   | Apache 2 utilities                               | package
--8<---------------cut here---------------end--------------->8---

and the firewall is disabled. What else can I check?

Best regards,
Bartosz Kaczyński

[1] https://open.sap.com/courses/suse2-1-pc