Doppler

Learn how to install and configure Doppler for secure secret management

What is Doppler?

Doppler is a secret management platform that helps developers securely store, manage, and sync environment variables and sensitive credentials across applications, teams, and environments. It simplifies secret management by providing a centralised, encrypted, and version-controlled solution, eliminating the risks of hardcoded secrets and manual configuration.

Doppler integrates seamlessly with cloud platforms, CI/CD pipelines, and Kubernetes, ensuring that applications always have access to the latest secrets without requiring manual updates.

Prerequisites

Virtual Machine running Ubuntu 22.04 or newer

Update Package Repository and Upgrade Packages

Bash

sudo apt update
sudo apt upgrade

Add Doppler repository to your system

Bash

sudo apt-get update && sudo apt-get install -y apt-transport-https ca-certificates curl gnupg
curl -sLf --retry 3 --tlsv1.2 --proto "=https" 'https://packages.doppler.com/public/cli/gpg.DE2A7741A397C129.key' | sudo gpg --dearmor -o /usr/share/keyrings/doppler-archive-keyring.gpg
echo "deb [signed-by=/usr/share/keyrings/doppler-archive-keyring.gpg] https://packages.doppler.com/public/cli/deb/debian any-version main" | sudo tee /etc/apt/sources.list.d/doppler-cli.list

Install Doppler

Bash

sudo apt-get update && sudo apt-get install doppler

Bash

doppler --version

Bash

doppler login

change to project directory before running next command

Bash

doppler setup

Install the Doppler Kubernetes Operator

Bash

helm repo add doppler https://helm.doppler.com
helm repo update
helm install doppler-operator doppler/doppler-kubernetes-operator \
  --namespace doppler-operator-system \
  --create-namespace

Create Token

Bash

doppler configs tokens create yelp-token --plain

Sample Use

Run this in project root folder

Bash

doppler setup --project yelp-camp --config dev

Bash

doppler secrets get DB_URL

Doppler

On this page