Commit Graph

1 Commits

Author SHA1 Message Date
Azamat M
9b55169251 Add readiness check for docker container (#9804)
* Update Dockerfile

Since parity is built for "mission critical use", I thought other operators may see the need for this.

Adding the `curl` and `jq` commands allows for an extremely simple health check to be usable in container orchestrators.

For example. Here is a health check for a parity docker container running in Kubernetes.

This can be setup as a readiness Probe that would prevent clustered nodes that aren't ready from serving traffic.

```bash
#!/bin/bash

ETH_SYNCING=$(curl -X POST --data '{"jsonrpc":"2.0","method":"eth_syncing","params":[],"id":1}' http://localhost:8545 -H 'Content-Type: application/json')
RESULT=$(echo "$ETH_SYNCING | jq -r .result)

if [ "$RESULT" == "false" ]; then
  echo "Parity is ready to start accepting traffic"
  exit 0
else
  echo "Parity is still syncing the blockchain"
  exit 1
fi
```

* add sync check script
2018-10-26 13:51:08 +02:00