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Version: current [25.x]

Enabling TLS for Dremio UI on Azure

This topic describes how to enable Transport Layer Security (TLS) for Dremio UI on Azure.

note

In Dremio 24+, the keyStorePassword property can be encrypted using the dremio-admin encrypt CLI command.

To enable Transport Layer Security (TLS) for Dremio, determine which of the following methods you want to implement:

  • Self-signed certificate
  • CA-certified certificate

Enabling TLS with a Self-Signed Certificate​

To enable TLS with a self-signed certificate:

  1. Go to Resource groups > YourResourceName > Overview.

  2. Click on <DremioClusterName>-master.

  3. Locate the DNS name for the master node. In the following sample screenshot, the DNS name is
    dremio-master-3kwnfmvg62gfe.westus2.cloudapp.azure.com.

  4. Access the Dremio cluster master node on Azure via the DNS name and become root. For example, using a terminal window, SSH to the Azure IP address with the username and password that you provided during the initial configuration.

    SSH to the Azure IP address 
    ssh azuser@dremio-master-3kwnfmvg62gfe.westus2.cloudapp.azure.com
    Password:
    $ sudo su -

  5. Configure Dremio by editing the /opt/dremio/conf/dremio.conf file and adding the following properties to the end of the file.

Add properties to /opt/dremio/conf/dremio.conf file 
services.coordinator.web.ssl.enabled: true
services.coordinator.web.ssl.auto-certificate.enabled: true

  1. Restart the Dremio service. See Start, Stop, and Status for RPM commands.

    Restart Dremio service 
    service dremio restart

  2. Log into the Dremio UI:

    Log in to Dremio UI 
    https://<dremio master DNS name>:9047
note

Self-signed certificates are not secure unless you can verify the certificate in the browser (by comparing fingerprints for example).

Enabling TLS with a CA-certified Certificate​

To enable TLS with a CA-certified certificate:

  1. Go to Resource groups > YourResourceName > Overview.

  2. Click on <DremioClusterName>-master.

  3. Locate the DNS name for the master node. In the following sample screenshot, the DNS name is
    dremio-master-3kwnfmvg62gfe.westus2.cloudapp.azure.com.

  4. Access the Dremio cluster master node on Azure via the DNS name and become root. For example, using a terminal window, SSH to the Azure IP address with the username and password that you provided during the initial configuration.

    SSH to Azure IP address 
    ssh azuser@dremio-master-3kwnfmvg62gfe.westus2.cloudapp.azure.com
    Password:
    sudo su -

  5. Obtain a TLS certificate for your DNS Name. For example, if you are using Let's Encrypt, install certbot, and generate the certificate.

    • The FQDN is set to the DNS name for the master node obtained in a previous step.
    • Make note of the last command output for the cert and cert key files.
    • Note: This certificate is valid for 90 days and must be renewed. After renewal, the subsequent Dremio configuration steps (steps 7 - 9) must be repeated.
    Install certbot and generate certificate 
    FQDN=<DNS name of the host>
    curl  https://dl.eff.org/certbot-auto -o certbot-auto
    mv certbot-auto /usr/local/bin/certbot-auto
    chown root /usr/local/bin/certbot-auto
    chmod 0755 /usr/local/bin/certbot-auto
    certbot-auto certonly -d $FQDN --standalone -n --agree-tos --email youremail@domain.com

  6. Create a keystore for Dremio. For example, the following example uses the output from the previous step.

Create keystore for Dremio 
PASSWORD=yourpassword
LETSENCRYPT_BASE=/etc/letsencrypt/live
DREMIO_DATA_DIR=/var/lib/dremio
openssl pkcs12 -export \
    -inkey $LETSENCRYPT_BASE/$FQDN/privkey.pem \
    -in $LETSENCRYPT_BASE/$FQDN/cert.pem \
    -out $DREMIO_DATA_DIR/store.pkcs12 \
    -passout pass:$PASSWORD
chown dremio:dremio $DREMIO_DATA_DIR/store.pkcs12
  1. Configure Dremio by editing the /opt/dremio/conf/dremio.conf file and adding the following properties to the end of the file. The keystore path and password were generated by the previous step. If you supplied a different keystore path and password, be sure to provide them instead.
Properties to add to /opt/dremio/conf/dremio.conf file 
services.coordinator.web.ssl.enabled: true
services.coordinator.web.ssl.auto-certificate.enabled: false
services.coordinator.web.ssl.keyStore: "/var/lib/dremio/store.pkcs12"
services.coordinator.web.ssl.keyStorePassword: "yourpassword"

  1. Restart the Dremio service. See Start, Stop, and Status for RPM commands.

    Restart Dremio service 
    service dremio restart

  2. Log into the Dremio UI:

    Log in to Dremio UI 
    https://<dremio master DNS name>:9047