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Architecture #13622

closed

Add a flag library to store persistent context on the agents

Added by Alexis Mousset over 4 years ago. Updated 8 months ago.

Status:
Released
Priority:
N/A
Category:
Generic methods
Target version:
Effort required:
Regression:

Description

This lib will be part of 20_cfe_basics.

It will allow storing a persisting database of flags that will be usable in the agents. Flags are somehow like persistent conditions but:

  • They have no expiration date
  • They are kept when resetting agent state

This will allow use cases like executing a command only once on a system.

The storage format will be a json file containing:

{
  "flag_name_1": { "created": "20181008-...." },
  "flag_name_2": { "created": "20181008-...." }
}

The file is by default in /var/rudder/agent-data/flags.json, and configurable in ncf.conf.

This library should provide methods to:

  • Load the flags into a variable
  • Reserve a flag (set the persistent class, fails of already present)
  • Set a flag
  • (Get a flag)
  • (Unset a flag)
Actions #1

Updated by Alexis Mousset over 4 years ago

  • Project changed from Rudder to 41
  • Category set to Generic methods
Actions #2

Updated by Alexis Mousset over 4 years ago

  • Description updated (diff)
Actions #3

Updated by Alexis Mousset over 4 years ago

  • Target version set to 4.3.5
Actions #4

Updated by Alexis Mousset over 4 years ago

  • Description updated (diff)
Actions #5

Updated by Alexis Mousset over 4 years ago

  • Description updated (diff)
Actions #6

Updated by Alexis Mousset over 4 years ago

  • Status changed from New to In progress
Actions #11

Updated by Alexis Mousset over 4 years ago

  • Status changed from In progress to Pending technical review
  • Assignee changed from Alexis Mousset to Nicolas CHARLES
  • Pull Request set to https://github.com/Normation/ncf/pull/847
Actions #12

Updated by Vincent MEMBRÉ over 4 years ago

  • Target version changed from 4.3.5 to 4.3.6
Actions #13

Updated by Alexis Mousset over 4 years ago

  • Status changed from Pending technical review to Pending release

Applied in changeset commit:5aac1ee3474058a3a0243bb473b12e62cead6fa0.

Actions #14

Updated by Alexis Mousset over 4 years ago

Applied in changeset commit:5e744cb8898d97592499301f12864e13a2d0007c.

Actions #15

Updated by Alexis Mousset about 4 years ago

  • Subject changed from Add a flag library to Add a flag library to store persistent context on the agents
Actions #16

Updated by Vincent MEMBRÉ about 4 years ago

  • Status changed from Pending release to Released
This bug has been fixed in Rudder 4.3.6 and 5.0.2 which were released today.
Changelog
Changelog
Actions #17

Updated by Alexis Mousset 8 months ago

  • Project changed from 41 to Rudder
  • Category changed from Generic methods to Generic methods
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