feat: add Preview support to midnight-node-docker (and indexer) #65
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- Add indexer-standalone service to compose.yml - Generate and manage indexer secret in .envrc - Add INDEXER_IMAGE to qanet and testnet-02 environments - Create new preview environment configuration - Update README to document indexer integration - Add indexer.secret to .gitignore
Add cardano-node and cardano-db-sync services to support midnight-node's main chain follower. Midnight-node requires access to Cardano blockchain data via PostgreSQL populated by cardano-db-sync. Services added: - cardano-node: Connects to Cardano preview network, provides blockchain data - cardano-db-sync: Syncs Cardano data to PostgreSQL (cexplorer database) Changes: - Added cardano-ipc and db-sync-data volumes for inter-service communication - Updated midnight-node-testnet to depend on cardano-db-sync - Created cardano-data/ directory for persistent node data - Set indexer APP__APPLICATION__NETWORK_ID=TestNet to match testnet-02 - Added interactions/ to .git/info/exclude Known issue - indexer version incompatibility: - Indexer 2.1.4 expects "Undeployed" network but testnet-02 uses "TestNet" - This is a version compatibility issue, not configuration - Cardano stack works correctly; indexer needs compatible version Other limitations: - Cardano sync takes significant time (hours to days for full sync) - Midnight-node shows verification errors until db-sync catches up Related: PM-20249
gilescope
reviewed
Nov 3, 2025
gilescope
reviewed
Nov 3, 2025
| @@ -0,0 +1,11 @@ | |||
| # overrides for preview | |||
| export MIDNIGHT_NODE_IMAGE="ghcr.io/midnight-ntwrk/midnight-node:0.17.0-rc.4" | |||
| export INDEXER_IMAGE="ghcr.io/midnight-ntwrk/indexer-standalone:3.0.0-alpha.5" | |||
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TODO: Node needs to publish to dockerhub for all named releases. (these referenced images aren't public)
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@gilescope Good catch on the ghcr.io images requiring auth. Is this blocking for the PR, or should we track it separately for the node team?
For context:
- testnet-02 already uses public Docker Hub image (midnightnetwork/midnight-node:0.12.1)
- preview/qanet use ghcr.io which needs GitHub authentication
gilescope
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Nov 3, 2025
.envrc.preview
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| # overrides for preview | ||
| export MIDNIGHT_NODE_IMAGE="ghcr.io/midnight-ntwrk/midnight-node:0.17.0-rc.4" | ||
| export INDEXER_IMAGE="ghcr.io/midnight-ntwrk/indexer-standalone:3.0.0-alpha.5" | ||
| export INDEXER_NETWORK_ID="Preview" |
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isn't the network id lowercase?
gilescope
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Nov 3, 2025
.envrc.testnet-02
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| export MIDNIGHT_NODE_IMAGE="midnightnetwork/midnight-node:0.12.0" | ||
| export MIDNIGHT_NODE_IMAGE="midnightnetwork/midnight-node:0.12.1" | ||
| export INDEXER_IMAGE="ghcr.io/midnight-ntwrk/indexer-standalone:2.1.4" | ||
| export INDEXER_NETWORK_ID="TestNet" |
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not TestNet-02 ? Honestly I think we should have lowercase for all these network ids.
gilescope
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Nov 3, 2025
| /data | ||
| *.privatekey | ||
| *.password | ||
| *.secret |
gilescope
reviewed
Nov 3, 2025
| volumes: | ||
| - cardano-ipc:/node-ipc | ||
| - db-sync-data:/var/lib/cexplorer | ||
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We have these in the other compose file:
cardano-db-sync
cardano-node
postgres
How about we just have one compose file and rely on docker compose profiles to turn sets of sevices on?
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Done! Everything is now in single compose.yml with profiles:
docker compose up→ just midnight-nodedocker compose --profile cardano up→ adds Cardano stack + indexerdocker compose --profile ogmios up→ adds Ogmiosdocker compose --profile proof-server up→ adds proof server
Deleted the legacy compose files as requested. Much cleaner now!
Co-authored-by: Squirrel <gilescope@gmail.com>
Fix critical network ID capitalization bugs (preview/qanet/testnet-02), standardize on .secret file extension for all sensitive data, consolidate all services into single compose.yml with Docker Compose profiles, and remove legacy compose files as requested.
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Adds indexer-standalone integration to midnight-node-docker, enabling users to run both Midnight node and indexer with a single docker-compose command.
Changes
Supported Networks
Fixes PM-20249