outtasync

outtasync helps users quickly identify the CloudFormation stacks that have gone out of sync with the state represented by their counterpart stack files. This can occur when someone updates a stack but fails to commit the latest stack file to the codebase. Alternatively, it may happen when a stack is updated on one deployment environment but not on others. 🤷

💾 Installation

homebrew:

brew install dhth/tap/outtasync

go:

go install github.com/dhth/outtasync@latest

🛠️ Pre-requisites

• git (used to show the diff for out-of-sync changes)
  • outtasync doesn’t change or override git’s pager, so the diff will follow your .gitconfig settings (if present).

🛠️ Configuration

Create a configuration file that looks like the following. By default, outtasync will look for this file at ~/.config/outtasync.yml.

globalRefreshCommand: aws sso login --sso-session sessionname
profiles:
- name: qa
  stacks:
  - name: bingo-service-qa
    local: ~/projects/bingo-service/cloudformation/infrastructure.yml
    region: eu-central-1
    refreshCommand: aws sso login --profile qa1
  - name: papaya-service-qa
    local: ~/projects/papaya-service/cloudformation/service.yml
    region: eu-central-1
  - name: racoon-service-qa
    local: ~/projects/racoon-service/cloudformation/service.yml
    region: eu-central-1
- name: prod
  stacks:
  - name: brb-dll-prod
    local: ~/projects/brb-dll-service/cloudformation/service.yml
    region: eu-central-1
    refreshCommand: aws sso login --profile rgb-prod
  - name: galactus-service-prod
    local: ~/projects/galactus-service/cloudformation/service.yml
    region: eu-central-1

refreshCommand overrides globalRefreshCommand whereever set.

Note: The globalRefreshCommand and refreshCommand settings are only needed if you want to invoke the command that refreshes your AWS credentials via the TUI directly.

⚡️ Usage

outtasync can run in two modes: A TUI mode (ideal for running locally), and a CLI mode (ideal for running in a CI pipeline). TUI mode is the default.

TUI Mode

outtasync
outtasync -config-file /path/to/config.yml
outtasync -profiles qa,prod
outtasync -p '<regex-pattern-for-stack-names>'
outtasync -p '.*(qa|staging)$'
outtasync -c # to check status for all stacks on startup

CLI Mode

outtasync -mode=cli

This will print an output like the following to stdout.

2 stacks are outtasync:

qa:eu-central-1:bingo-service-qa
prod:eu-central-1:galactus-service-prod

Downloading in a CI pipeline

outtasync can be downloaded from Github releases and used as follows:

curl -s -OL https://github.com/dhth/outtasync/releases/download/v0.3.0/outtasync_v0.3.0_linux_amd64.tar.gz
tar -xzvf outtasync_v0.3.0_linux_amd64.tar.gz
./outtasync -mode=cli

⌨️ Keymaps

↑/k                                  up
↓/j                                  down
→/l/pgdn                             next page
←/h/pgup                             prev page
g/home                               go to start
G/end                                go to end
ctrl+f/enter                         check status
a                                    check status for all
r                                    refresh aws credentials
ctrl+d/v                             show diff
o                                    filter outtasync stacks
i                                    filter in-sync stacks
e                                    filter stacks with errors
q                                    return to previous page/quit
/                                    filter
?                                    show/close help

Screenshots

TODO

• Add a command to generate a sample config file
• Add CLI mode

Acknowledgements

outtasync is built using the awesome TUI framework bubbletea.