Ansible 2.3 error during ssh connection to host is one of the common error faced by most of the new users of ansible. The error looks like the below statement. infra_ci | UNREACHABLE! => { “changed”: false, “msg”: “Failed to… Continue Reading →
User data is commonly used in launch configuration to run scripts during instance initialization. Launch configuration is usually used along with auto scaling groups to launch instances with similar instance settings. Userdata can be templatized in terraform. Templatizing helps in… Continue Reading →
Your load balancer checks the health of its registered instances using either the default health check configuration provided by Elastic Load Balancing or a custom health check configuration that you specify. The health check configuration contains information such as the… Continue Reading →
An Internet-facing load balancer takes requests from clients over the Internet and routes them to the back-end instances. To create an Internet-facing load balancer, ensure that your subnets are public subnets. A public subnet has a route to an Internet… Continue Reading →
Docker reference commands Install a OS container docker pull ubuntu docker run -i -t ubuntu /bin/bash Stop & delete docker stop $(docker ps -a -q) docker rm $(docker ps -a -q) List docker running containers docker ps List all docker… Continue Reading →
Cassandra 2.0 Create KEYSPACE or DATABASE DESCRIBE KEYSPACES; Creating a keyspace is the CQL counterpart to creating an SQL database, but a little different. The Cassandra keyspace is a namespace that defines how data is replicated on nodes. Typically, a… Continue Reading →
I recently had an opportunity to design & architect the Junos space applications demos on AWS setup. Find a briefing of how you can setup a Junos space server on AWS. Goal: Creating a Junos Space, Network Director & Security Director setup… Continue Reading →
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