Document InfluxDB I/O procedures

docs/integrate/bi/powerbi-desktop.rst

@@ -192,6 +192,6 @@ The pie chart will be updated automatically, and will produce the following:
 .. _World Economic Outlook survey: https://www.imf.org/en/Publications/WEO
 .. _Power BI Desktop: https://powerbi.microsoft.com/en-us/desktop/
 .. _PostgreSQL ODBC driver: https://odbc.postgresql.org/
-.. _downloads section: https://www.postgresql.org/ftp/odbc/versions/msi/
+.. _downloads section: https://www.postgresql.org/ftp/odbc/versions.old/msi/
 .. _raw data: https://www.imf.org/en/Publications/WEO/weo-database/2017/April/download-entire-database
 .. _preprocessed archive: https://cratedb.com/wp-content/uploads/2018/11/copy_from_population_data.zip

docs/integrate/etl/index.md

@@ -62,17 +62,18 @@ Tutorials and resources about configuring the managed variants, Astro and CrateD
 - [Tutorial: Replicating data to CrateDB with Debezium and Kafka]
 - [Webinar: How to replicate data from other databases to CrateDB with Debezium and Kafka]
 
+## InfluxDB
+
+- {ref}`integrate-influxdb`
 
 ## Kestra
 
 - [Setting up data pipelines with CrateDB and Kestra]
 
-
 ## MongoDB
 
 - {ref}`integrate-mongodb`
 
-
 ## MySQL
 
 - {ref}`integrate-mysql`
@@ -136,6 +137,7 @@ A demo project which uses SSIS and ODBC to read and write data from CrateDB:
 ```{toctree}
 :hidden:
 
+influxdb
 mongodb
 mysql
 ```

docs/integrate/etl/influxdb.md

@@ -0,0 +1,73 @@
+(integrate-influxdb)=
+(import-influxdb)=
+# Import data from InfluxDB
+
+In this quick tutorial we use the InfluxDB I/O subsystem of CrateDB Toolkit
+to import data from InfluxDB into CrateDB.
+
+(integrate-influxdb-quickstart)=
+## Quickstart
+
+There are multiple ways to get and use the this tool, to avoid 
+unnecessary installations we will use Docker to run the services.
+**Docker is needed for this:**
+
+:::{code} console
+docker run --rm --network=host ghcr.io/daq-tools/influxio \
+    influxio copy \
+    "http://example:token@localhost:8086/testdrive/demo" \
+    "crate://crate@localhost:4200/testdrive/demo"
+:::
+
+(setup-influxdb)=
+### InfluxDB setup
+
+Following is an example configuration of InfluxDB and some sample data
+should you need it. **Prerequisite for these to work is a running 
+instance of InfluxDB.**
+
+Initial InfluxDB configuration:
+
+:::{code} console
+influx setup \
+  --username user1 \
+  --password 49jk8FQB$]1 \
+  --token token123 \
+  --org example \
+  --bucket testdrive \
+  --force
+:::
+
+Write sample data to InfluxDB:
+
+:::{code} console
+influx write --bucket=testdrive --org=example --precision=s "demo,region=amazonas temperature=27.4,humidity=92.3,windspeed=4.5 1588363200"
+influx write --bucket=testdrive --org=example --precision=s "demo,region=amazonas temperature=28.2,humidity=88.7,windspeed=4.7 1588549600"
+influx write --bucket=testdrive --org=example --precision=s "demo,region=amazonas temperature=27.9,humidity=91.6,windspeed=3.2 1588736000"
+influx write --bucket=testdrive --org=example --precision=s "demo,region=amazonas temperature=29.1,humidity=88.1,windspeed=2.4 1588922400"
+influx write --bucket=testdrive --org=example --precision=s "demo,region=amazonas temperature=28.6,humidity=93.4,windspeed=2.9 1589108800"
+:::
+
+(export-data)=
+### Export
+
+Now you can export the data into CrateDB. **Prerequisite for these to work
+is a running instance of CrateDB.**
+
+:::{code} console
+export CRATEDB_SQLALCHEMY_URL=crate://crate@localhost:4200/testdrive/demo
+ctk load table influxdb2://example:token123@localhost:8086/testdrive/demo
+:::
+
+And verify that data is indeed in your CrateDB cluster:
+
+:::{code} console
+crash --command "SELECT * FROM testdrive.demo;"
+:::
+
+(cratedb-toolkit)=
+## Setup
+
+There are many more ways to get and use the CrateDB Toolkit. To see all
+that's possible with it, please visit the 
+[cratedb-toolkit repository](https://github.com/crate-workbench/cratedb-toolkit/tree/main/cratedb_toolkit/io)