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---
tags:
- chef
references:
- https://docs.chef.io/nodes/#node-objects
- https://docs.chef.io/attribute_precedence/
---
```
cookbooks/onecom-baseline/attributes/default.rb
122:# unattended-upgrades
123:default['unattended-upgrades']['enable'] = false
```
We should override that somehow. Let's take a look below at how the attribute can be overridden.
```
chef-repo master
❯ cat roles/onecom-mailpod-mailstorage-focal-22.json
{
"name": "onecom-mailpod-mailstorage-focal-22",
"description": "One.com mailpod mailstorage Ubuntu Focal role - Dovecot 2.2.x",
"json_class": "Chef::Role",
"default_attributes": {
"apt": {
"repositories": {
"dovecot22-production": {
"action": "add"
}
}
},
"dovecot": {
"version": "1:2.2.36.4-1onecom5+20201026.1518.12cbf375.dovecot22.focal1"
}
},
"override_attributes": {
"unattended-upgrades": {
"enable": false,
"upgrade": "0"
},
"prometheus": {
"node_exporter": {
"collector": {
"systemd": {
"unit-whitelist": {
"unattended-upgrades": false
}
}
}
}
}
},
"chef_type": "role",
"run_list": [
"role[onecom-mailpod-mailstorage-focal]"
]
}
```
**The following table specifies attribute precedence:**
|Application Order (Last One Wins)|Attribute Type|Source Order|
|1|`default`|Cookbook attribute fileRecipeEnvironmentRole|
|2|`force_default`|Cookbook attribute fileRecipe|
|3|`normal`|JSON file passed with `chef-client -j`Cookbook attribute fileRecipe|
|4|`override`|Cookbook attribute fileRecipeRoleEnvironment|
|5|`force_override`|Cookbook attribute fileRecipe|
|6|`automatic`|Identified by Ohai at the start of a Chef Infra Client Run|
So apparently for level 4 we have to set "override_attributes" in the node definition.0-=
|
