132 lines
2.4 KiB
Markdown
132 lines
2.4 KiB
Markdown
vagrant-k8s
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===========
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Scripts to create libvirt lab with vagrant and prepare some stuff for `k8s` deployment with `kargo`.
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Requirements
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============
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* `libvirt`
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* `vagrant`
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* `vagrant-libvirt` plugin (`vagrant plugin install vagrant-libvirt`)
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* `$USER` should be able to connect to libvirt (test with `virsh list --all`)
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How-to
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======
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Vargant lab preparation
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-----------------------
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* Change default IP pool for vagrant networks if you want:
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```bash
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export VAGRANT_POOL="10.100.0.0/16"
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```
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* Clone this repo
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```bash
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git clone https://github.com/adidenko/vagrant-k8s
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cd vagrant-k8s
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```
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* If you want to run OpenStack CCP (Containerised Control Plane) then you need
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to pull CCP repos and patches:
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```bash
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pushd ccp
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./ccp-pull.sh
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popd
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```
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* Prepare the virtual lab:
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```bash
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vagrant up
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```
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Deployment on a lab
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-------------------
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* Login to master node and sudo to root:
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```bash
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vagrant ssh $USER-k8s-01
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sudo su -
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```
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* Clone this repo
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```bash
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git clone https://github.com/adidenko/vagrant-k8s ~/mcp
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```
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* Install required software and pull needed repos (modify script if you're not
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running it on Vagrant lab, you'll need to create `nodes` list manually and
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clone `microservices` and `microservices-repos` repositories, see ccp-pull.sh
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for details)
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```bash
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cd ~/mcp
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./bootstrap-master.sh
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```
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* Check nodes list and make sure you have SSH access to them
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```bash
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cd ~/mcp
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cat nodes
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```
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* Deploy k8s using kargo playbooks
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```bash
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cd ~/mcp
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./deploy-k8s.kargo.sh
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```
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* Deploy OpenStack CCP:
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```bash
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cd ~/mcp
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./deploy-ccp.sh
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```
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Working with kubernetes
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-----------------------
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* Login to one of your kube-master nodes (see `/root/kargo/inventory/inventory.cfg`
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on master node) and run:
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```bash
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# List images in registry
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curl -s 127.0.0.1:31500/v2/_catalog | python -mjson.tool
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# Check CCP jobs status
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kubectl --namespace=openstack get jobs
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# Check CCP pods
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kubectl --namespace=openstack get pods -o wide
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```
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* Troubleshooting
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** Some basic commands
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```bash
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# Get logs from pod
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kubectl --namespace=openstack logs $POD_NAME
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# Exec command from pod
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kubectl --namespace=openstack exec $POD_NAME cat /etc/resolv.conf
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kubectl --namespace=openstack exec $POD_NAME curl http://etcd-client:2379/health
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# Run a container
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docker run -t -i 127.0.0.1:31500/mcp/neutron-dhcp-agent /bin/bash
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```
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** Network checker
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```bash
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cd ~/mcp
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./deploy-netchecker.sh
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# or in openstack namespace
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./deploy-netchecker.sh openstack
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