razeedash-api

Razeedash-API is the interface used by

• app.razee.io
• watch-keeper

Requirements

• Kubernetes CLI Tools
• Kubernetes Cluster
• MongoDB

Environment Variables

Name	Required	Default Value
MONGO_URL	yes	'mongodb://localhost:3001/meteor'
MONGO_DB_NAME	yes	'meteor'
S3_ENDPOINT	no	n/a
S3_ACCESS_KEY_ID	if S3_ENDPOINT defined	n/a
S3_SECRET_ACCESS_KEY	if S3_ENDPOINT defined	n/a
S3_LOCATION_CONSTRAINT	no	'us-standard'

If S3_ENDPOINT is defined then encrypted cluster YAML is stored in S3 otherwise it will be stored in the mongoDB.

OS/X

gettext package is default on most Linux systems. If you are using OS/X for local development you may need to install it in order to generate a deployment YAML.

If you are testing ./build/process-template.sh you will need brew installed and gettext.

brew update
brew install gettext
brew link --force gettext

Install on Kubernetes

Setup so you can use kubectl commands on the target cluster. For IBM Cloude Kubernetes Service the following command will get the KUBECONFIG for your Kubernetes cluster and export the KUBECONFIG variable.

ibmcloud ks cluster-config <cluster name>

Create secrets and deploy

Generate a base64 encoding for the mongo_url to be used in the razeedash-secret. The following is an example of local mongo deployment. Not recommended for production use.

echo -n "mongodb://mongo:27017" | base64

Note: Production MongoDB usually is a minimum of 3 nodes using replica sets. That definition would look something like:

echo -n "mongodb://mongo‑0:27017,mongo‑1:27017,mongo‑2/razeedash?replicaSet=rs0" | base64

Create file razeedash-secret.yaml using the generated string provided from the previous command.

apiVersion: v1
kind: Secret
metadata:
  name: razeedash-secret
  namespace: razee
type: Opaque
data:
  mongo_url: bW9uZ29kYjovL21vbmdvOjI3MDE3L3JhemVlZGFzaAo=

If you are using your own managed mongodb system, make sure you setup the mongo_url secret properly.

Apply the secret to kubernetes, build the resource.yml and apply to cluster:

kubectl apply -f razeedash-secret.yaml
./build/process-template.sh kubernetes/razeedash-api/resource.yaml >/tmp/resource.yaml
kubectl apply -f /tmp/resource.yaml

Check logs on all deployed pods to make sure there are no errors.

for i in `kubectl get pods -n razee --selector=app=razeedash-api | \
  grep razeedash-api | \
  awk '{print $1}'`; do kubectl logs ${i} -n razee --since 5m; done

Example deployment using IBM Cloud

This will deploy the razeedash-api and mongo on a 3 node cluster using IBM Cloud Kubernetes Service.

Note: In a production scenario it is recommended to used a managed Mongo database service, like IBM Cloud Databases for MongoDB.

Requirements:

• jq jq is a lightweight and flexible command-line JSON processor
• IBM Cloud Account IBM Cloud
• IBM Cloud CLI Setting up the CLI and API
• Kubernetes CLI Install and Set Up kubectl

Create Cluster

You can use a utility script ic_create_cluster.sh located in kube-cloud-scripts or follow the (IBM Containers CLI plugin documentation to create a cluster.

ic_create_cluster.sh --name razeetest

if you have an existing cluster and need to resize

ibmcloud ks worker-pool-resize \
  --cluster <cluster-name> \
  --worker-pool default \
  --size-per-zone 3

Once the cluster (ibmcloud ks clusters) is created and in a normal state, we need to get Kubernetes config.

ibmcloud ks cluster-config razeetest

Example

ibmcloud ks cluster-config razeetest
OK
The configuration for razeetest was downloaded successfully.

Export environment variables to start using Kubernetes.

export KUBECONFIG=~/.bluemix/plugins/container-service/clusters/razeetest/kube-config-wdc07-razeetest.yml

Note: Setup 3 node MongoDB Cluster must have a minimum of 3 nodes in order to statisfy Mongo. You can follow the guide Setting up clusters and workers to deploy a 3 node MongoDB replica set.

Deploy components

Deploy MongoDB and set up replica sets. This is based on the guide Deploy a MongoDB replica set using IBM Cloud Kubernetes Service Individually

# Add razee namespace, single mongo, razeedash secret
kubectl apply -f samples/namespace.yaml
kubectl apply -f samples/persistentVolume.yaml
kubectl apply -f samples/persistentVolumeClaim.yaml
kubectl apply -f samples/mongo.yaml
kubectl apply -f samples/service.yaml
kubectl apply -f samples/secret.yaml

or All in one command

# Add razee namespace, single mongo, razeedash secret
kubectl apply -f samples/allinone.yaml

Wait until mongo pods are ready. You can check the status via:

kubectl get pods

Once pods are in a Running state continue with the setup process

# Get latest release of razeedash-api and deploy
kubectl apply -f "https://github.com/razee-io/razeedash-api/releases/latest/download/resource.yaml"

Check logs across pods using kc_logs.sh script from kube-cloud-scripts

kc_logs.sh razee razeedash-api 1m