66 lines
2.3 KiB
Markdown
66 lines
2.3 KiB
Markdown
# Description
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This document gives and overview of how creating backups in ElasticSearch works.
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# Usage
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We mount a `node/backup` folder in the container under `/var/backup`.
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This folder can be used to create snapshots, for example:
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```sh
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> PAYLOAD='{"type":"fs","settings":{"location":"/var/backup/kibana"}}'
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> curl -sSf -XPUT localhost:9200/_snapshot/kibana -d "$PAYLOAD" -H 'content-type: application/json'
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{"acknowledged":true}
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```
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Then you can create snapshots of all or individual indices:
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```sh
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> PAYLOAD='{"indices":".kibana_*"}'
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> curl -sSf -XPUT localhost:9200/_snapshot/kibana/$(date +%Y%m%d) -d $PAYLOAD -H 'content-type: application/json'
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{"accepted":true}
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```
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These snapshots can be looked up easily:
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```sh
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> curl -sSf localhost:9200/_snapshot/kibana/20220214 | jq '.snapshots[] | { snapshot, indices }'
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{
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"snapshot": "20220214",
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"indices": [
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".kibana_8",
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".kibana_7.14.2_001",
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".kibana_2",
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".kibana_6",
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".kibana_task_manager_7.14.2_001",
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".kibana_task_manager_1",
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".kibana_9",
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".kibana_7",
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".kibana_3",
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".kibana_1",
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".kibana_4",
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".kibana_5",
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]
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}
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```
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This snapshot can be restored just as easily:
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```sh
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> curl -sSf -XPOST localhost:9200/_snapshot/kibana/20220214/_restore
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{"accepted":true}
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```
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All these backups are available in the folder for backup with other tools:
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```
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> du -hsc /docker/elasticsearch/node/backup/kibana/indices/*
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400K /docker/elasticsearch/node/backup/kibana/indices/5c9BpVRQRHGSCPcM-Xdndw
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40K /docker/elasticsearch/node/backup/kibana/indices/EGpsTrm1S5y6S7AvgmsZGg
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38M /docker/elasticsearch/node/backup/kibana/indices/H-AdzeWWQnWzp770CVHqjQ
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1.1M /docker/elasticsearch/node/backup/kibana/indices/MSKseBbUTwK46kNVjzKsfg
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16K /docker/elasticsearch/node/backup/kibana/indices/V1HHFmBHQu66lEP-acWwiw
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2.8M /docker/elasticsearch/node/backup/kibana/indices/VYuYnxYBS12wzbCuO7RiLw
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612K /docker/elasticsearch/node/backup/kibana/indices/fk1ZZamBSUS0tc-S-BZAHA
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43M total
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```
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# Links
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* https://www.elastic.co/guide/en/elasticsearch/reference/current/searchable-snapshots.html
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* https://www.elastic.co/guide/en/elasticsearch/reference/current/snapshots-register-repository.html
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* https://www.elastic.co/guide/en/elasticsearch/reference/current/snapshot-restore.html
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* https://discuss.elastic.co/t/location-doesnt-match-any-of-the-locations-specified-by-path-repo-because-this-setting-is-empty/38579/3
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