First step:
Make sure you have Docker installed.
Second step:
We need to run the Rancher Server with some commands, ex.:
sudo docker run -d \
--restart=unless-stopped \
--name rancher \
-p 80:80 \
-p 443:443 \
-v /opt/rancher:/var/lib/rancher \
--privileged \
rancher/rancher:v2.5.1 --no-cacerts
The --no-cacerts will make sure https://rancher_url/v3/settings/cacerts is empty.
Remember, this is optional.
This solve the problem: x509: certificate signed by unknown authority
The --privileged solve kubernetes privileged requirements on the latest versions of rancher.
To use with DNS, and auto-gernerate certificate, just need to add a parameter, like this:
sudo docker run -d \
--restart=unless-stopped \
--name rancher \
-p 80:80 \
-p 443:443 \
-v /opt/rancher:/var/lib/rancher \
--privileged \
rancher/rancher:v2.5.1 \
--acme-domain mydomain.com
Third step:
We need to use rancher-cli official image for run the commands(You can make for yourself an image).
1. rancher login HOST TOKEN
2. rancher ps # for see the k8s deployments
3. rancher kubectl set image deployments/nginx nginx=nginx:latest # for update a deployment
Whith this we can use Rancher CLI commands, for example in Continuous Integration.
Enjoy it :D