Configure a Custom Certificate of Authority (Cloud)

If your environment includes a custom Certificate of Authority (CA) that contains custom or non-standard certificates/chains (such as self-signed certificates) that are not included in the set of standard certificates typically included in internet browsers, you must enable Pepperdata to find the CA file. Pepperdata looks for the CA files in the locations specified by two environment variables that you assign: REQUESTS_CA_BUNDLE and SSL_CERT_FILE.

Procedure

This procedure is applicable for installing the custom CA during the bootstrap process.

In your cloud environment (such as GDP or AWS), configure the locations of the CA bundle and SSL certificate filenames.
1. From the environment’s cluster configuration folder (in the cloud), download the Pepperdata configuration file, /etc/pepperdata/pepperdata-config.sh, to a location where you can edit it.
2. Open the file for editing, and add the environment variables in the following format. Be sure to substitute your CA bundle and SSL certificate filenames for the your-fully-qualified-ca-bundle-file and your-fully-qualified-ssl-cert-file placeholders in the following snippet, respectively.
  - If you set only one of the environment variables, Pepperdata assigns its value to the other environment variable.
  - The REQUESTS_CA_BUNDLE certificate is used by libraries that use the Python requests package.
  - The SSL_CERT_FILE certificate is used only by libraries that directly use OpenSSL instead of using the Python requests package.
```
export REQUESTS_CA_BUNDLE=your-fully-qualified-ca-bundle-file
export SSL_CERT_FILE=your-fully-qualified-ssl-cert-file
```
3. Save your changes and close the file.
4. Upload the revised file to overwrite the original pepperdata-config.sh file.
If there are no already-running hosts with Pepperdata, you are done with this procedure. Do not perform the remaining steps.
Open a command shell (terminal session) and log in to any already-running host as a user with sudo privileges.

Important: You can begin with any host on which Pepperdata is running, but be sure to repeat the login (this step), copying the bootstrap file (next step), and loading the revised Pepperdata configuration (the following step) on every already-running host.
From the command line, copy the Pepperdata bootstrap script that you extracted from the Pepperdata package from its local location to any location; in this procedure’s steps, we’ve copied it to /tmp.
- For Amazon EMR clusters:
  
  aws s3 cp s3://<pd-bootstrap-script-from-install-packages> /tmp/bootstrap
- For Google Dataproc clusters:
  
  sudo gsutil cp gs://<pd-bootstrap-script-from-install-packages> /tmp/bootstrap
Load the revised configuration by running the Pepperdata bootstrap script.
- For EMR clusters:
  - You can use the --long-options form of the --bucket, --upload-realm, and --is-running arguments as shown or their -short-option equivalents, -b, -u, and -r.
  - The --is-running (-r) option is required for bootstrapping an already-running host prior to Supervisor version 7.0.13.
  - Optionally, you can specify a proxy server for the AWS Command Line Interface (CLI) and Pepperdata-enabled cluster hosts.
    
    Include the --proxy-address (or --emr-proxy-address for Supervisor version 8.0.24 or later) argument when running the Pepperdata bootstrap script, specifying its value as a fully-qualified host address that uses https protocol.
  - If you’re using a non-default EMR API endpoint (by using the --endpoint-url argument), include the --emr-api-endpoint argument when running the Pepperdata bootstrap script. Its value must be a fully-qualified host address. (It can use http or https protocol.)
  - If you are using a script from an earlier Supervisor version that has the --cluster or -c arguments instead of the --upload-realm or -u arguments (which were introduced in Supervisor v6.5), respectively, you can continue using the script and its old arguments. They are backward compatible.
  - Optionally, you can override the default exponential backoff and jitter retry logic for the describe-cluster command that the Pepperdata bootstrapping uses to retrieve the cluster’s metadata.
    
    Specify either or both of the following options in the bootstrap’s Optional arguments. Be sure to substitute your values for the <my-retries> and <my-timeout> placeholders that are shown in the command.
    - max-retry-attempts—(default=10) Maximum number of retry attempts to make after the initial describe-cluster call.
    - max-timeout—(default=60) Maximum number of seconds to wait before the next retry call to describe-cluster. The actual wait time for a given retry is assigned as a random number, 1–calculated timeout (inclusive), which introduces the desired jitter.
```
# For Supervisor versions before 7.0.13:
sudo bash /tmp/bootstrap --bucket <bucket-name> --upload-realm <realm-name> --is-running [--proxy-address <proxy-url:proxy-port>] [--emr-api-endpoint <endpoint-url:endpoint-port>] [--max-retry-attempts <my-retries>] [--max-timeout <my-timeout>]
   
# For Supervisor versions 7.0.13 to 8.0.23:
sudo bash /tmp/bootstrap --bucket <bucket-name> --upload-realm <realm-name> [--proxy-address <proxy-url:proxy-port>] [--emr-api-endpoint <endpoint-url:endpoint-port>] [--max-retry-attempts <my-retries>] [--max-timeout <my-timeout>]
   
# For Supervisor versions 8.0.24 and later:
sudo bash /tmp/bootstrap --bucket <bucket-name> --upload-realm <realm-name> [--emr-proxy-address <proxy-url:proxy-port>] [--emr-api-endpoint <endpoint-url:endpoint-port>] [--max-retry-attempts <my-retries>] [--max-timeout <my-timeout>]
```
- For Dataproc clusters:
  
  sudo bash /tmp/bootstrap <bucket-name> <realm-name>
The script finishes with a Pepperdata installation succeeded message.
Repeat steps 2–4 on every already-running host in your cluster.