Solution
Since BigchainDB and Tendermint are so tightly coupled we need to introduce a process supervisor to make them act like a single microservice, so that if BigchainDB crashes, Tendermint does as well and both are restarted and Tendermint requests a connection towards the proxy app.
In Kubernetes, they can be exposed as part of a one POD.
For BigchainDB as a system service/process, we need to introduce a process supervisor such as systemd.
This PR only solves the former.
Changes
Upgrade deployment from Tendermint v0.12.0 to v0.19.0
Update some documentation
Fix nginx-http entrypoint issues.
Update generate-configs.sh script to handle config generation without https-certificates.
Update Dockerfile to process dependency links introduced by abci
Integrate BigchainDB and Tendermint as a single microservice.
This required making BigchainDB to be exposed as a statefulset.
Introduce new liveness probe checks.
Issues Resolved
Partially fixes#2232
Description
Currently we manually configure ports in deployment and service files for k8s deployment e.g here. Instead these ports should be constant since these are always the same for each deployment
Issues This PR Fixes
Fixes#2077
- Separate deployments, services, statefulsets etc
`yaml` files for tendermint based deployment.
- Separate Dockerfiles for mongodb, nginx for
tendermint integrated BigchainDB.
* Add more tools to the toolbox container
* Add mongodb monitoring agent
* Add a bigchaindb/mongodb-monitoring-agent container that includes the
monitoring agent.
* It makes use of an api key provided by MongoDB Cloud Manager. This is
included in the configuration/config-map.yaml file.
* Changes to mongodb StatefulSet configuration
Changes to bump up mongodb version to v3.4.3.
Add configuration settings for mongodb instance name in ConfigMap.
Split the mongodb service to a new configuration file.
* Modify bigchaindb deployment config
* Bugfix to remove keyring field for the first node.
* Split the mongodb service to a new configuration file.
* Add mongodb backup agent
* Add a bigchaindb/mongodb-backup-agent container that includes the
backup agent.
* It makes use of an api key provided by MongoDB Cloud Manager. This is
included in the configuration/config-map.yaml file.
* Changes to nginx deployment config
* Allow 'all' by default for now. This is included in the
configuration/config-map.yaml file.
* Dynamically resolve DNS addresses of our backend services; cache DNS
resolution for 20s.
* Configure DNS based on user provided resolver. This helps in user
deciding to provide 8.8.8.8 or a custom DNS for name resolution. For k8s
deployments, we use the hardcoded k8s DNS IP of 10.0.0.10.
* Changes to nginx-3scale deployment config
* Use the common ConfigMap in configuration/config-map.yaml file.
* Removing prefix `v` from the docker tag for mongodb-monitoring-agent and mongodb containers
* Bumping up version for nginx-3scale container
* Add small helper scripts for docker build and push of mongodb monitoring
and backup agents
* Documentation for setting up the first node with monitoring and backup
agents
Vanshdeep Singh
Ahmed Muawia Khan
Shahbaz Nazir
muawiakh
Krish
krish7919 (Krish)