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37 lines
1.8 KiB
Markdown
37 lines
1.8 KiB
Markdown
# Container common settings
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## Features
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1. **Stable disk usage footprint**: Sets a maximum log size any podman container log is allowed to grow up to (from unlimited size to 100Mb). Log "max size" is not a hard limit, but a point when Container Monitor attempts to truncate container log file. **NOTE:** application-specific logs that may be written outside container logs are not truncated by Container Monitor at set limits.
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## Requirements
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1. You have already setup the on boot script described [here](https://github.com/unifi-utilities/unifios-utilities/tree/main/on-boot-script)
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## Customization
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While a 100Mb log limit per container should give plenty of log data for all featured in this repo projects, you can increase or decrease max_log_size value in /mnt/data/on_boot.d/05-container-common.sh file after installation.
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## Steps
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1. Run as root on UDM Pro to download and set permissions of on_boot.d script:
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```sh
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# Download 05-container-common.sh from GitHub
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curl -L https://raw.githubusercontent.com/unifi-utilities/unifios-utilities/main/container-common/on_boot.d/05-container-common.sh -o /mnt/data/on_boot.d/05-container-common.sh;
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# Set execute permission
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chmod a+x /mnt/data/on_boot.d/05-container-common.sh;
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```
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2. Review the script /mnt/data/on_boot.d/05-container-common.sh and when happy execute it.
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```sh
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# Review script
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cat /mnt/data/on_boot.d/05-container-common.sh;
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# Apply container-common settings
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/mnt/data/on_boot.d/05-container-common.sh;
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```
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3. Already running containers will pick up new defaults after either container restart ("podman restart \<container-name\>") or after UDM Pro restart. New containers will pick up a change from first run.
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4. To list containers that are running with log size limits:
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```sh
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# List container monitor processes with "--log-size-max" custom argument set
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ps -ef | grep conmon | grep log-size-max
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```
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