Running Apache NiFi in Docker is a simple and hassle-free process if you know the port to access. This article explains how to get Apache NiFi running in Docker on a Linux machine. If you don't have already, install Docker first.
Step 1:
Pull the latest Nifi image from the docker repository.
docker pull apache/nifi:latestStep 2:
Run Apache Nifi as a docker container.
docker run --name nifi -p 8443:8443 -e NIFI_WEB_HTTPS_PORT='8443' -d apache/nifi:latestStep 3:
Run the following command to get the NiFi logs from the Docker container.
docker logs -f nifiStep 4:
Look for the following line to get the port Apache NiFi is running.
INFO [main] org.apache.nifi.web.server.JettyServer https://4cdc79d1487f:8443/nifiAbove
line tells that the NiFi frontend is running at port number 8443. This port
number must be same as the port number defined in Step 2.
Scroll further up and look for the lines with the temporary username and password.
Scroll further up and look for the lines with the temporary username and password.
Generated Username [xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx]
Generated Password [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx]In a production environment, the username and password
must be configured manually. However, the scope of this article is limited to
just spinning up a NiFi container for testing. Therefore, we can continue with
the temporary username and password.
To change the username and password, use the following command:
docker run --name nifi -p 8443:8443 -e SINGLE_USER_CREDENTIALS_USERNAME=admin -e SINGLE_USER_CREDENTIALS_PASSWORD=ctsBtRBKHRAx69EqUghvvgEvjnaLjFEB -d apache/nifi:latestStep 5:
Visit
https://localhost:8443/nifi. The browser may wan you that the connection is
not private because the SSL certificate is not valid. Ignore the warning and
proceed to the site.
Step 6:
Use the username and password copied in Step 4 to log in to the Apache NiFi dashboard.
If you have any problems getting this working or if you find this article helpful, please leave a comment below. To run Apache NiFi as a cluster in Docker, read the next article: Run Apache NiFi Cluster in Docker.
EmoticonEmoticon