GuideAugust 25, 20267 min read

Multi-Cloud Credential Management for Developers

AWS, GCP, Azure, Cloudflare — modern developers juggle credentials for multiple cloud providers. ConfigSync keeps them encrypted, synced, and organized.

The Multi-Cloud Credential Sprawl

Most development teams use more than one cloud provider. Your backend runs on AWS. Your edge functions deploy to Cloudflare. Machine learning workloads use GCP. A legacy system still runs on Azure. Each provider has its own CLI with its own credential files scattered across your home directory.

Setting up all these credentials on a new machine means running four separate login flows, configuring multiple profiles for each provider, and remembering which account goes with which project. Do this on two or three machines and you have a real maintenance problem.

Built-In and Custom Cloud Modules

ConfigSync has built-in modules for the most common cloud tools, and you can add any others as custom configs:

ProviderConfig LocationDetectionEncrypted Fields
AWS~/.aws/credentials, ~/.aws/configBuilt-in moduleAccess keys, session tokens
Cloudflare~/.wrangler/config/default.tomlBuilt-in moduleAPI tokens
GCP~/.config/gcloud/Add as configOAuth tokens, service account keys
Azure~/.azure/Add as configAccess tokens, refresh tokens

Setting Up Multi-Cloud Sync

Start with a scan to detect built-in modules, then add the rest manually:

Adding all cloud credentials
# Scan detects AWS and Wrangler automatically configsync scan # ✓ Detected: aws (~/.aws/credentials, ~/.aws/config) # ✓ Detected: wrangler (~/.wrangler/config/default.toml) # Add GCP credentials configsync add config ~/.config/gcloud/properties configsync add config ~/.config/gcloud/application_default_credentials.json # Add Azure credentials configsync add config ~/.azure/config configsync add config ~/.azure/azureProfile.json # Push all cloud credentials (encrypted) configsync push
Automatic encryption: ConfigSync detects that these files contain access keys, tokens, and secrets. They are encrypted with AES-128 before leaving your machine. The server never sees plaintext credentials.

Environment-Scoped Credentials

Development and production should use different credentials. ConfigSync profiles let you scope cloud credentials to environments:

~/.configsync/config.yaml
profiles: development: vars: aws_profile: "dev-account" gcp_project: "myapp-dev-123" staging: vars: aws_profile: "staging-account" gcp_project: "myapp-staging-456" production: vars: aws_profile: "prod-account" gcp_project: "myapp-prod-789"
~/.aws/config with template variables
[default] region = us-east-1 profile = {{vars.aws_profile}} [profile dev-account] region = us-east-1 output = json [profile staging-account] region = us-east-1 output = json [profile prod-account] region = us-east-1 output = json mfa_serial = arn:aws:iam::123456789:mfa/sean

Pull with configsync pull --profile development and your default AWS profile points to the dev account. Switch profiles and every cloud CLI reconfigures itself. No manual profile switching across four different tools.

One Push, All Clouds Configured

The real payoff comes when you set up a new machine or cloud VM:

New machine: all cloud CLIs ready
# On your new machine or VM configsync setup --token cs_xxx configsync pull # Every cloud CLI is immediately configured aws sts get-caller-identity # ✓ Authenticated gcloud config list # ✓ Project configured az account show # ✓ Subscription set wrangler whoami # ✓ Account connected

No login flows. No finding access keys in a password manager. No figuring out which GCP project ID goes with which environment. One pull and every cloud tool is ready to use.

Credential Rotation Made Simple

When you rotate a cloud credential — which you should do regularly — update it on one machine and push. Every other machine picks up the new credential on the next pull. There is no list of machines to update, no SSH sessions to open, no credentials to copy between laptops.

For teams, this is even more powerful. A shared profile with shared credentials means rotating a key updates it for every developer at once. Combined with ConfigSync's version history, you can also roll back to previous credentials if something goes wrong.

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