Makes postgres-reload-modules conditional by RobRuana · Pull Request #216 · saltstack-formulas/postgres-formula

RobRuana · 2018-06-05T18:10:21Z

This pull request makes the postgres-reload-modules conditional so it doesn't report changes during every run.

RobRuana · 2018-06-05T18:11:20Z

postgres/codenamemap.yaml

 {{ debian_codename('vivid', '9.4') }}
 {{ debian_codename('wily', '9.4') }}
 {{ debian_codename('xenial', '9.5') }}
+{{ debian_codename('bionic', '10') }}


Adds codename for Ubuntu 18.04 "bionic". This was all I needed to change to get Postgres 10 working for Ubuntu 18.04.

RobRuana · 2018-06-05T18:11:45Z

postgres/defaults.yaml


  bake_image: False

+  manage_force_reload_modules: True


New config setting defaults to True to preserve existing behavior.

RobRuana · 2018-06-05T18:13:45Z

postgres/manage.sls


 {%- endif %}

+{%- if needs_client_binaries or postgres.manage_force_reload_modules %}


I was getting tired of postgres-reload-modules running even when nothing had changed. I hid the state behind a conditional that checks if any new client binaries were installed, or if manage_force_reload_modules was set to True.

NOTE: manage_force_reload_modules defaults to True to preserve the existing behavior.

Maybemange_force_reload_modules should default to False to fix #214 @vunty what do you think?

I'm totally fine with setting mange_force_reload_modules to False by default.

myii · 2018-06-06T05:34:01Z

@RobRuana Great minds think alike... pipped you to the postgres/codenamemap.yaml change by 3 hours -- see #215. Took it a bit further by updating the list to all of the supported versions and getting rid off the deadwood.

noelmcloughlin

LGTM, I have just one outstanding query.

vutny

@RobRuana Thanks for your PR!

Since we already have a PR submitted to add support for Ubuntu 18, I propose to separate concerns and focus on fixing issue #214 here. I found it really annoys people 😃

Also I think you need to add conditional to macros.jinja file, as each state produced by format_state macro has explicit requirement on the postgres-reload-modules.

…nditional

RobRuana · 2018-06-06T18:51:16Z

Okay, I merged the codename changes from master and made manage_force_reload_modules default to False.

Furthermore, I repositioned the conditional so postgres-reload-modules always runs, so other states will always be able to reference it. The part that's conditional is whether it reports changes or not.

vutny · 2018-06-07T11:43:27Z

postgres/manage.sls

  test.succeed_with_changes:
+{%- else %}
+  test.succeed_without_changes:
+{%- endif %}


@RobRuana This seems like an obvious fix, but that wouldn't work.
Each state generated below explicitly subscribed on changes in postgres-reload-modules. So if you later change PG entities in the Pillar, it will not have any effect.
The only way I see to overcome this: you need to put conditional in format_state macro to depend on modules reload only when postgres.manage_force_reload_modules set True.

@vutny, yes, you are correct that this breaks any state using the format_state() macro.

At first I couldn't understand why onchanges: postgres-reload-modules was being used instead of require: postgres-reload-modules. But then I realized that many instances of format_state() are already using the require conditional, so there would be conflicting require keys when the state is rendered.

Correct me if I'm wrong, but I believe onchanges is being used to force correct ordering of the states, not because we want every format_state() to run when there are changes in postgres-reload-modules.

If that's correct, then we should be able to achieve the same result by using watch instead of onchanges in format_state(). I've made that change. Please let me know if you think that works.

myii · 2018-07-23T07:35:06Z

postgres/server/init.sls

    - enable: True
-   {% if grains.os not in ('MacOS',) %}
-    - reload: True
-   {% endif %}


@RobRuana This has already been resolved by 79ab1a2 during #218:

postgres-formula/postgres/server/init.sls

Lines 141 to 151 in 332fe7b

- watch_in:

- module: postgresql-service-restart

{%- endif %}

# Restart the service where reloading is not sufficient

# Currently when the cluster is created or changes made to `postgresql.conf`

postgresql-service-restart:

module.wait:

- name: service.restart

- m_name: {{ postgres.service }}

Thanks for the notice! I'm scrambling to get everything working at the moment, and this was my quick and dirty fix. I've synced with upstream.

@RobRuana You're welcome.

Syncing with upstream

aboe76 · 2018-07-29T14:57:29Z

@vutny could you take another look and ping me if it's ok?

vutny · 2018-08-01T08:57:56Z

@aboe76 @RobRuana My in-line comment above still applies. All latter states in postgres.manage are subscribed on changes from postgres-reload-modules. So if it succeeds without changes in subsequent highstate run, there would be no further states to trigger, even if related Pillar data would be changed.

…n pg_hba.conf

RobRuana · 2018-08-01T21:14:56Z

postgres/server/init.sls

    - require:
      - file: postgresql-config-dir
+    - watch_in:
+      - module: postgresql-service-restart


I've found that simply reloading the postgres service is not enough to pick up ACL changes in pg_hba.conf. A full restart is required.

This is on ubuntu 18.04 with postgres 10.

RobRuana · 2018-08-01T21:31:27Z

I'm going to close this pull request for now. I may revisit this issue, but for now I am okay with the postgres-reload-modules reporting changes all the time.

@RobRuana

…formulas#214 Based on the great work of @RobRuana in saltstack-formulas#216.

@RobRuana

…formulas#214 Based on the great work of @RobRuana in saltstack-formulas#216.

Adds Ubuntu "bionic" codename & makes reload-modules conditional

984cf4e

RobRuana commented Jun 5, 2018

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noelmcloughlin approved these changes Jun 6, 2018

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vutny suggested changes Jun 6, 2018

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RobRuana added 4 commits June 6, 2018 14:32

Allows postgres-reload-modules to always run, only the changes are co…

4dd99d5

…nditional

Adds Ubuntu "bionic" codename & makes reload-modules conditional

ed74e86

Allows postgres-reload-modules to always run, only the changes are co…

a9498ad

…nditional

Merge saltstack-formulas master

69fc654

RobRuana changed the title ~~Adds Ubuntu "bionic" codename & makes reload-modules conditional~~ Makes postgres-reload-modules conditional Jun 6, 2018

RobRuana added 2 commits June 6, 2018 14:48

Merge branch 'master' into master

5115e45

Removes extraneous whitespace

f6f4998

vutny reviewed Jun 7, 2018

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RobRuana added 2 commits July 22, 2018 15:27

Make sure postgresql-conf runs before postgresql-running

d2408a4

Force postgresql service restart instead of reload

32f45e9

myii reviewed Jul 23, 2018

View reviewed changes

RobRuana added 2 commits July 23, 2018 12:28

Merge pull request #1 from saltstack-formulas/master

41033a2

Syncing with upstream

Reverts force service restart, as this issue was fixed upstream

42580d7

RobRuana added 2 commits August 1, 2018 10:27

Uses watch requisite for postgres-reload-modules instead of onchanges

5c77a33

Reloading the postgres service is not enough to pick up ACL changes i…

ef87358

…n pg_hba.conf

RobRuana commented Aug 1, 2018

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RobRuana closed this Aug 1, 2018

myii mentioned this pull request Aug 16, 2018

Fresh install need to restart after pg_hba.conf #236

Closed

myii mentioned this pull request Jan 16, 2019

Fix #236: Restart postgres service after ACL changes in pg_hba.conf #250

Merged

alxwr added a commit to alxwr/postgres-formula that referenced this pull request Apr 30, 2019

fix(postgres.manage): only reload modules if needed; fixes saltstack-…

ad6caee

…formulas#214 Based on the great work of @RobRuana in saltstack-formulas#216.

alxwr mentioned this pull request Apr 30, 2019

fix(postgres.manage): only reload modules if needed; fixes #214 #265

Open

alxwr added a commit to alxwr/postgres-formula that referenced this pull request May 3, 2019

fix(postgres.manage): only reload modules if needed; fixes saltstack-…

feea4f1

…formulas#214 Based on the great work of @RobRuana in saltstack-formulas#216.


		{%- endif %}

		{%- if needs_client_binaries or postgres.manage_force_reload_modules %}

	- watch_in:
	- module: postgresql-service-restart

	{%- endif %}

	# Restart the service where reloading is not sufficient
	# Currently when the cluster is created or changes made to `postgresql.conf`
	postgresql-service-restart:
	module.wait:
	- name: service.restart
	- m_name: {{ postgres.service }}

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RobRuana commented Jun 5, 2018 •

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RobRuana Jun 5, 2018 •

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