Bahmni ABDM Proxy simulates HRP (Health Repository Providers) in order to allow sharing ABDM secrets across multiple single tenant bahmni instances running as HIU/HIP.
Individual Bahmni instances (as HIU/HIP) continues to directly call the ABDM gateway using shared secrets
ABDM Gateway responds back onto the ABDM Proxy callback endpoint.
ABDM Proxy maintains knowledge (map) about HIU/HIP (key) and their corresponding instance url. It extracts the HIU/HIP ID from the request callback header (e.g. X-HIU-ID) and derive the deligate url
It would then forward the request to the deligate url (with headers as-is) in order to have it handled by the designated HIP/HIU instance.
Setup
The assumption is that all the Bahmni instances are running within the same Kubernetes cluster (any of the 3 approaches depicted in this document).
🔘 Create A record for ABDM Proxy
The assumption is that you have already setup a Hosted Zone for your domain (e.g. mybahmni.in) and completed the infra setup. This A record is to have a unique subdomain for ABDM proxy e.g. abdm-proxy.mybahmni.in. You could either follow this guide for CLI or this for Console (choose Alias to network load-balancer and then select the configured elb from your aws region).
🔘 Apply ABDM proxy ingress in default namespace
Start by forking this repo https://github.com/BahmniIndiaDistro/abdm-callback-proxy - change the host in ingress.yaml to the alias that you setup in above setup e.g. abdm-proxy.mybahmni.in and then apply in default namespace
kubectl apply -f ingress.yaml
🔘 Apply abdm proxy service in default namespace
ABDM proxy uses Nginx + NJS to manage the HIU/HIP map and perform the deligation. Change the deligateRepository in njs.ts to represent your bahmni cluster with various instances of bahmni. In below example alpha and omega are 2 bahmni instances running as HIP/HIP in different namespace within the same EKS cluster having their own A record defined.
const deligateRepository: { [key: string]: string } = {
alpha: 'alpha.mybahmni.in',
omega: 'omega.mybahmni.in',
};
TODO
Setup alpha and omega as HIP and HIU ID
Create services on ABDM gateway
Create Docker Image and push to Implementer’s dockerhub
yarn rollout