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1. cosmos-devops cosmos-devops Public

   This repository is a collection of my cosmos DevOps journey. I'll be putting my progress, code samples, and experiments in this repository.

   Shell 11

2. getting count of 4xx and 5xx logs fr... getting count of 4xx and 5xx logs from the logs file

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   # logs-generate

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   For generating apache logs used https://github.com/mingrammer/flog

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   ```

3. prometheus needed disk space calcula... prometheus needed disk space calculation based on number of samples ingested and calculating bytes per sample alongwith retention period

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   ### query to calculate the storage space required for Prometheus

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   ```

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   1296000 * (rate(prometheus_tsdb_head_samples_appended_total[1d]) *

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   (rate(prometheus_tsdb_compaction_chunk_size_bytes_sum[1d]) / rate(prometheus_tsdb_compaction_chunk_samples_sum[1d])))

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   ```

4. Commands for backup and restore of m... Commands for backup and restore of mysql database

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   ##### For backup of all databases,

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   ```bash

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   mysqldump -u <DB_USER> -p --all-databases --host <DB_HOST> -P <DB_PORT> > <PATH_FOR_FILE>.sql

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   ```

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5. Commands for backup and restore of p... Commands for backup and restore of postgresql database

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   ##### For backup,

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   ```bash

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   pg_dump -W -U <DB_USERNAME> <DB_NAME> -h <DB_HOST> -p <DB_PORT> --no-owner > <PATH_FOR_FILE>.sql

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   ```

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6. Safely cordon, drain and delete nodes Safely cordon, drain and delete nodes

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   To cordon a node,

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   ```bash

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   kc cordon <node-name>

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   ```

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