isabella232 / consul2calico

Sync Consul registry to Calico GlobalNetworkSet

Consul Calico Sync

Overview

This project will sync/configure calico network policies based on consul KV state.

It will allow ingress/egress traffic from nodes registered in consul to deployments running on kubernetes .

Whenever a node is added to the Hostgroup / rebuilt / changes ip , this project will dynamically change the corresponding calico GlobalNetworkSet.

Getting Started Running with Helm

1. Create ETCD secret:

   kubectl create secret generic etcd-cert \
   --from-file=etcd-ca.crt=./etcd-ca.crt.txt \
   --from-file=etcd.crt=./etcd.crt.txt \
   --from-file=etcd.key=./etcd.key.txt 

2. Build docker image :

   docker build -t consul-calico-sync:0.0.1 .

3. Push to local repository :

   docker push  http://local-repo:8080/consul-calico-sync:0.0.1 .

4. Change image in values.yaml

   # The name (and tag) of the Docker image for consul2calico sync.
   image:
   repository: http://local-repo:8080/consul-calico-sync
   pullPolicy: Always
   tag: 0.0.1

5. Install chart

   helm install -n consul-calico-sync -c ./charts/ --namespace namespace

How to run tests :

Defaults configured for tests : CALICO_SYNC_INTERVAL=2s CALICO_REMOVE_GRACE_TIME=30m

• With logs :

  go test  ./...

• Without logs :

  go test  ./... -v

Future releases

• Add support for Kubernetes API datastore . (Currently this project support Calico deployments with etcd as datastore)
• Add support for consul TLS .