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Keep Old Versions of AMIs #44

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Keep Old Versions of AMIs #44

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6 changes: 6 additions & 0 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,12 @@ set :aws_secret_key, ENV['AWS_SECRET_ACCESS_KEY']
set :aws_region, ENV['AWS_REGION']
```

Define how many past AMIs to keep during cleanup. The default is 5.

```ruby
set :elbas_keep_amis, 5
```

## Usage

Instead of using Capistrano's `server` method, use `autoscale` instead in
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11 changes: 8 additions & 3 deletions lib/elbas/tasks/elbas.rake
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Expand Up @@ -25,9 +25,14 @@ namespace :elbas do
info "Updated launch template, new default version = #{launch_template.version}"

info "Cleaning up old AMIs..."
ami.ancestors.each do |ancestor|
info "Deleting old AMI: #{ancestor.id}"
ancestor.delete
keep = fetch(:elbas_keep_amis) || 5
if ami.ancestors.count > keep
amis = ami.ancestors.drop(keep)
amis.each do |ancestor|
info "Deleting old AMI: #{ancestor.id}"
ancestor.delete
end
info "Deleted #{amis.count} old AMIs and keeping newest #{keep}"
end

info "Deployment complete!"
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