How to query cookbook versions on a node?
Solution 1
If you can ssh into the box you can look under /var/chef/cache/cookbooks/<cookbook name>/metadata.json
to find the version.
Also, you can access it during a chef run by looking at
@run_context.cookbook_collection
, but that probably doesn't help.
Generally the cookbook version is defined by the environment, but since environments change over time, you can't really trust that to be the same set that was used when this node last converged (especially if it's been a while).
By far your safest option will be to look at the chef cache.
Solution 2
If you're using ohai (you probably are), you can do something like this:
knife search -i 'cookbooks:your-cookbook' -a cookbooks.your-cookbook.version
This will give you output that shows the hostname and the cookbook version:
1 items found
server.name.example:
cookbooks.cs-redis.version: 0.3.2
Solution 3
In our organisation we use a base cookbook to set an attribute on the node with the cookbook versions.
run_context.cookbook_collection.each do |key, cookbook|
node.set['base_cookbook']['cookbook_versions'][cookbook.name] = cookbook.version
end
Then we can query the versions used by a node with
knife node show <node-name> -a base_cookbook.cookbook_versions
Solution 4
I had a similar requirement where I published a new version of cookbook and wanted to find which nodes were using the latest version of my cookbook. The below knife commands worked for me.
knife search -i node "cookbooks:<cookbook-name> AND cookbooks_<cookbook-name>_version:100.1.0"
Solution 5
Came across this post and ended up working out a grep command to do this.
sudo grep -o -e '\"version\"\:\"[a-zA-Z0-9.]*\"' -e '\"version\"\: \"[a-zA-Z0-9.]*\"' /var/chef/cache/cookbooks/*/metadata.json
Comments
-
digit plumber almost 2 years
Usage case: The DevOps team launched a node sometime ago, and my team would like to know what's the version(s) of one/several cookbook(s) being used in the run_list. Our DevOps team is firefighting so we'd like to find a way to be self-sufficient.
Commands Tried:
knife cookbook show COOKBOOK
give all possible versions, but does not specify which one being used.knife node show NODE
shows all cookbooks, but there's no version info attached.Question: Is there a command (something similar to
knife search
,ohai
) to query the chef-server for the versions deployed on the node? -
scrthq about 3 yearsThank you for this! We had an issue where we need to backport an attribute override to older versions of an internal cookbook, this helped immensely when hunting down nodes that were pinned to an older version of the cookbook in scope.