cloud-init operations

v0.1.3

cloud-init introspection + boot diagnostics + stage re-runs. Use when an EC2/GCE/Azure VM finishes booting but the workload didn't come up the way it should: check overall status, blame slow modules, dump user-data / cloud-config / vendor-data as the instance actually saw them, tail the cloud-init logs, and (with operator approval) re-run individual modules or the full init pipeline.

Pack ID

cloud-init

Vendor

emisar

linux

Actions

Required binaries: cloud-init. Actions that call a missing binary fail at run time — install these on the host before relying on the pack.

Install

emisar pack install validates the pack and verifies its content hash before copying it into /etc/emisar/packs. The --hash below pins the install to the exact bytes on this page — a tampered copy is rejected. After install, reload the runner; it re-reads the catalog and advertises every action.

content hash: sha256:ab60a913fe7c4bae1fdbc169f99e97562f64b689d73cb6369c8546b423fcb2f8

on the runner host

sudo emisar pack install cloud-init \
  --hash sha256:ab60a913fe7c4bae1fdbc169f99e97562f64b689d73cb6369c8546b423fcb2f8 \
  --dest /etc/emisar/packs

# Reload so the runner re-reads the catalog:
sudo systemctl reload emisar

Actions 23 total

View on GitHub

cloud-init.analyze_blame exec low

cloud-init analyze blame
cloud-init.analyze_dump exec low

cloud-init analyze dump
cloud-init.analyze_show exec low

cloud-init analyze show
cloud-init.clean exec critical

cloud-init clean
cloud-init.clean_logs exec medium

cloud-init clean --logs
cloud-init.cloud_config_dump exec low

cat /var/lib/cloud/instance/cloud-config.txt
cloud-init.collect_logs exec medium

cloud-init collect-logs
cloud-init.init exec high

cloud-init init
cloud-init.init_local exec high

cloud-init init --local
cloud-init.instance_id exec low

cat /var/lib/cloud/data/instance-id
cloud-init.journal_tail exec low

journalctl -u cloud-init -n <lines>
cloud-init.log_tail exec low

tail /var/log/cloud-init.log
cloud-init.modules_config exec high

cloud-init modules --mode=config
cloud-init.modules_final exec high

cloud-init modules --mode=final
cloud-init.output_log_tail exec low

tail /var/log/cloud-init-output.log
cloud-init.query_metadata exec low

cloud-init query <key>
cloud-init.schema_validate exec low

cloud-init schema --system
cloud-init.single_module exec high

cloud-init single --name=<module>
cloud-init.status exec low

cloud-init status
cloud-init.status_long exec low

cloud-init status --long [--wait]
cloud-init.userdata_dump exec low

cat /var/lib/cloud/instance/user-data.txt
cloud-init.vendor_data_dump exec low

cat /var/lib/cloud/instance/vendor-data.txt
cloud-init.version exec low

cloud-init --version

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