sudhirpandey

RHEL 6.3 veewee templates for vagrant use

These templates can be used to feed to veewee to spin up an el6 basebox for use with vagrant.

There are some coded values in definition.rb and ks.cfg which point at Yale-ishness. Amend to point at local RHEL iso/yum repo.

Built successfully with veewee 0.2.3, vagrant 1.0.3, Virtualbox 4.1.18.

Config Management

sudhirpandey

Installing Graphite:

Graphite does two things:

1. Store numeric time-series data
2. Render graphs of this data on demand

What Graphite does not do is collect data for you, however there are some tools out there that know

sudhirpandey

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

sudhirpandey

Java, do you trust me? 🤔

Using openssl to test an SSL connection to google.com, using a CA file that's been pulled out from a Java keystore. For those days when you want to verify that you've got the right certificate in the store:

1. Download the Equifax root certificate (which is the root CA for Google)
2. Import the certificate into a new Java keystore
3. Export the certificate back out again
4. Convert the certificate to PEM
5. Use openssl to test an SSL connection to Google with that cert