EC-Agent

EC Agent implemented in Go before merge into Kubelet

Steps to run EC Agent

These instructions assume that you wish to run the Agent as a standalone process and not as part of the kubelet. Additionally, it is assumed that the machine you're running the Agent on is running the modified version of the EC-4.20.16 Kernel and you've inserted the appropriate kernel modules you wish to test (i.e. cgroup_connection is required to make a conneciton to GCM, resize_quota for CPU requests, etc.)

Step 1: Setting up your Environment

1. Install Docker
2. Install Kubernetes

   sudo apt-get update && sudo apt-get install -y apt-transport-https
   curl -s https://packages.cloud.google.com/apt/doc/apt-key.gpg | sudo apt-key add -
   

   Add the following line to /etc/apt/sources.list.d/kubernetes.list
   • deb http://apt.kubernetes.io/ kubernetes-xenial main

   sudo apt-get update
   sudo apt-get install -y kubelet kubeadm kubectl
   

3. Install latest version of Go (note: testing was done on v1.14.1)

       sudo apt-get update
       cd /tmp
       wget https://dl.google.com/go/go1.14.1.linux-amd64.tar.gz
       sudo tar -xvf go1.14.1.linux-amd64.tar.gz
       sudo mv go /usr/local
   

   Add the following lines in ~/.profile:

       export GOROOT=/usr/local/go
       export GOPATH=$HOME/go
       export PATH=$GOPATH/bin:$GOROOT/bin:$PATH
   

   Finally, source ~/.profile to update $GOPATH

Step 2: Running the Agent

1. Make sure the node on which the agent is running is included in your Kubernetes cluster (i.e. can do kubctl get nodes on the master node to confirm)
2. Make sure the agent_ip has been updated correctly in ec_gcm/tests/app_def.json.
3. Also, make sure ec_gcm is on branch ref-agent-go. This is because I beleive there WAS a protobuf error in sending header information and so I've removed that bit from the gcm in that specific branch.
4. Finally, run the Agent on the node via:
   • go run main.go
   • And build/run the ec_gcm code as you normally would