Simple HTTP API to relay messages to SMTP servers.
Install deps:
$ make deps
Install the following command-line tools:
- gcloud is used to create and delete Kubernetes Engine clusters. gcloud is included in the Google Cloud SDK.
- kubectl is used to manage Kubernetes, the cluster orchestration system used by Kubernetes Engine. You can install kubectl using gcloud:
$ gcloud components install kubectl
Set some defaults:
gcloud config set project crowdstart-us
gcloud config set compute/zone us-central1-b
$ make run
You can test the server is running by sending an email payload to it:
$ curl -i --user user:pass -H "Content-Type: application/json" -H "Accept: application/json" -X POST -d '{"username":"foo", "password":"asdf", "host":"", "port":"","mailfrom":"","mailto":[],"msg":""}' https://smtp-relay.hanzo.ai
Create cluster named smtp-relay with 2 nodes:
$ gcloud container clusters create smtp-relay --num-nodes=2
Creating cluster smtp-relay...done. Created [https://container.googleapis.com/v1/projects/crowdstart-us/zones/us-central1-b/clusters/smtp-relay].
kubeconfig entry generated for smtp-relay.
NAME ZONE MASTER_VERSION MASTER_IP MACHINE_TYPE NODE_VERSION NUM_NODES STATUS
smtp-relay us-central1-b 1.7.8-gke.0 35.202.117.238 n1-standard-1 1.7.8-gke.0 2 RUNNING
You can list clusters for in your project or get the details for a single cluster using the following commands:
$ gcloud container clusters list
$ gcloud container clusters describe smtp-relay
To create a deployment:
$ kubectl create -f deployment.yaml
Verify the three replicas are running by querying the list of the labels that identify the web frontend:
kubectl get pods -l app=smtp-relay
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