Simple CouchDB replication setup

repscript.sh

#!/bin/bash
set -xe

DB=http://adm:pass@localhost:15984

http $DB

http -b delete $DB/_replicator
http -b delete $DB/source
http -b delete $DB/target

http -b put $DB/_replicator
http -b put $DB/source
http -b put $DB/source/doc1 a=b
http -b put $DB/target
http -b put $DB/_replicator/repdoc source="$DB/source" target="$DB/target" continuous:='true'

sleep 6

http -b $DB/_scheduler/docs

http -b $DB/target/_all_docs

### example output (http is httpie client)

# + DB=http://adm:pass@localhost:15984
# + http http://adm:pass@localhost:15984
# HTTP/1.1 200 OK
# Server: CouchDB/3.2.1 (Erlang OTP/22)

# {
#     "couchdb": "Welcome",
#     "features": [
#         "access-ready",
#         "partitioned",
#         "pluggable-storage-engines",
#         "reshard",
#         "scheduler"
#     ],
#     "git_sha": "244d428",
#     "uuid": "fake_uuid_for_dev",
#     "vendor": {
#         "name": "The Apache Software Foundation"
#     },
#     "version": "3.2.1"
# }

# + http -b delete http://adm:pass@localhost:15984/_replicator
# {
#     "ok": true
# }

# + http -b delete http://adm:pass@localhost:15984/source
# {
#     "ok": true
# }

# + http -b delete http://adm:pass@localhost:15984/target
# {
#     "ok": true
# }

# + http -b put http://adm:pass@localhost:15984/_replicator
# {
#     "ok": true
# }

# + http -b put http://adm:pass@localhost:15984/source
# {
#     "ok": true
# }

# + http -b put http://adm:pass@localhost:15984/source/doc1 a=b
# {
#     "id": "doc1",
#     "ok": true,
#     "rev": "1-4b8a35d3f70a5962f86c6dd06ceb599c"
# }

# + http -b put http://adm:pass@localhost:15984/target
# {
#     "ok": true
# }

# + http -b put http://adm:pass@localhost:15984/_replicator/repdoc source=http://adm:pass@localhost:15984/source target=http://adm:pass@localhost:15984/target continuous:=true
# {
#     "id": "repdoc",
#     "ok": true,
#     "rev": "1-84c3dadd54688a80ad5d65abf130f790"
# }

# + sleep 6
# + http -b http://adm:pass@localhost:15984/_scheduler/docs
# {
#     "docs": [
#         {
#             "database": "_replicator",
#             "doc_id": "repdoc",
#             "error_count": 0,
#             "id": "f4d6f5ea9b59a98faebecde02e68e48b+continuous",
#             "info": {
#                 "changes_pending": null,
#                 "checkpointed_source_seq": 0,
#                 "doc_write_failures": 0,
#                 "docs_read": 1,
#                 "docs_written": 1,
#                 "missing_revisions_found": 1,
#                 "revisions_checked": 1,
#                 "source_seq": "1-g1AAAACNeJzLYWBgYMpgTmHgz8tPSTV0MDQy1zMAQsMckEQiQ1L9____szKYExlygQLshommFhYWqSkMnKV5KalpmXmpKTg157EASYYGIPUfagYj2AzTpERjA0tDTF1ZANjhI_Q",
#                 "through_seq": "1-g1AAAACNeJzLYWBgYMpgTmHgz8tPSTV0MDQy1zMAQsMckEQiQ1L9____szKYExlygQLshommFhYWqSkMnKV5KalpmXmpKTg157EASYYGIPUfagYj2AzTpERjA0tDTF1ZANjhI_Q"
#             },
#             "last_updated": "2022-02-27T20:41:37Z",
#             "node": "[email protected]",
#             "source": "http://localhost:15984/source/",
#             "source_proxy": null,
#             "start_time": "2022-02-27T20:41:37Z",
#             "state": "running",
#             "target": "http://localhost:15984/target/",
#             "target_proxy": null
#         }
#     ],
#     "offset": 0,
#     "total_rows": 1
# }

# + http -b http://adm:pass@localhost:15984/target/_all_docs
# {
#     "offset": 0,
#     "rows": [
#         {
#             "id": "doc1",
#             "key": "doc1",
#             "value": {
#                 "rev": "1-4b8a35d3f70a5962f86c6dd06ceb599c"
#             }
#         }
#     ],
#     "total_rows": 1
# }