info from grpc catalogsource

script

# Useful link for how to discover API's: https://github.com/operator-framework/operator-registry/issues/33#issuecomment-473671805

# get tools
go get github.com/fullstorydev/grpcurl/...
go install github.com/fullstorydev/grpcurl/cmd/grpcurl

# constants for what we're investigating
NAMESPACE=openshift-marketplace
LOCAL_PORT=50051
REMOTE_PORT=50051
GRPCURL=$(which grpcurl)

for CATALOG_SOURCE_NAME in redhat-operators certified-operators community-operators;
do
    # 1. start a port-forward
    POD_NAME=$(oc -n $NAMESPACE get pods -l marketplace.operatorSource=$CATALOG_SOURCE_NAME -o jsonpath='{.items[].metadata.name}' 2>/dev/null | grep $CATALOG_SOURCE_NAME || \
        oc -n $NAMESPACE get pods -l olm.catalogSource=$CATALOG_SOURCE_NAME -o jsonpath='{.items[].metadata.name}' 2>/dev/null)
    oc -n $NAMESPACE port-forward pod/$POD_NAME $LOCAL_PORT:$REMOTE_PORT 2>/dev/null >/dev/null &
    sleep 5

    # 2. extract CSV
    for PACKAGE in $($GRPCURL -plaintext localhost:$LOCAL_PORT api.Registry/ListPackages | jq -r .name);
    do
        for CHANNEL in $($GRPCURL -plaintext -d "{\"name\":\"$PACKAGE\"}" localhost:$LOCAL_PORT api.Registry/GetPackage | jq -r .defaultChannelName);
        do
            echo "Writing ${CATALOG_SOURCE_NAME}_${PACKAGE}.json"
            $GRPCURL -plaintext -d "{\"pkgName\":\"$PACKAGE\",\"channelName\":\"$CHANNEL\"}" localhost:$LOCAL_PORT api.Registry/GetBundleForChannel | jq -r .csvJson | python -mjson.tool > ${CATALOG_SOURCE_NAME}_${PACKAGE}.json
        done
    done

    # 3. kill port-forward 
    kill -9 $(ps aux | grep "port-forward" | awk '{print $2}') 2>/dev/null
done