How to use Templates with Consul

1. What does consul template do?
2. What is a Ctmpl file?
3. What is Envconsul?
4. How does HashiCorp Consul work?
5. What is Vault agent?
6. What is the use of HashiCorp vault?
7. How do I use the HashiCorp Vault API?
8. When should I use consul?
9. How can I work for consul?
10. How do I become a consul?
11. How do I set up Vault client?
12. What is Kubernetes Auth Method?
13. How Vault works with Kubernetes?

What does consul template do?

Introduction to Consul template

Consul template is a simple, yet powerful tool. When initiated, it reads one or more template files and queries Consul for all data needed to render them.

What is a Ctmpl file?

ctmpl — This template will be used to generate server. conf file which contains content of mainly all nginx setup and all of your routes.

What is Envconsul?

Envconsul is a tool which is basically used to read and set environmental variables for processes from Consul. Envconsul provides a convenient way to populate values from Consul into a child process environment using the envconsul daemon.

How does HashiCorp Consul work?

HashiCorp Consul is an open source tool that solves these new complexities by providing service discovery, health checks, load balancing, a service graph, mutual TLS identity enforcement, and a configuration key-value store. These features make Consul an ideal control plane for a service mesh.

What is Vault agent?

Vault Agent is a client daemon that provides the following features: Auto-Auth - Automatically authenticate to Vault and manage the token renewal process for locally-retrieved dynamic secrets.

What is the use of HashiCorp vault?

HashiCorp Vault is a secrets management tool specifically designed to control access to sensitive credentials in a low-trust environment. It can be used to store sensitive values and at the same time dynamically generate access for specific services/applications on lease.

How do I use the HashiCorp Vault API?

Using the unseal key (not the root token) from above, you can unseal the Vault via the HTTP API. You can invoke the Vault API to validate the initialization status. This returns a JSON response. Now any of the available auth methods can be enabled and configured.

When should I use consul?

Consul is a distributed, highly available, datacenter-aware, service discovery and configuration system. It can be used to present services and nodes in a flexible and powerful interface that allows clients to always have an up-to-date view of the infrastructure they are a part of.

How can I work for consul?

Consul is an important service discovery tool in the world of Devops. This tutorial covers in-depth working knowledge of Consul, its setup and deployment. This tutorial aims to help new user's setup consul, develop advanced knowledge on consul and learn some interesting projects built around consul.

How do I become a consul?

To become an honorary consul you must work with a diplomatic consultant, sometimes also called a diplomatic broker or must have a very strong international political network of your own. Your consultant needs to know and understand your situation and intentions to connect you with the best suitable option.

How do I set up Vault client?

Fundamentals

1. Configure Vault.
2. Vault High Availability with Consul.
3. Production Hardening.
4. Vault Policies.
5. Identity: Entities and Groups.
6. Generate Root Tokens Using Unseal Keys.
7. Rekeying & Rotating Vault.
8. Protecting Vault with Resource Quotas.

What is Kubernetes Auth Method?

The kubernetes auth method can be used to authenticate with Vault using a Kubernetes Service Account Token. This method of authentication makes it easy to introduce a Vault token into a Kubernetes Pod.

How Vault works with Kubernetes?

Vault provides a Kubernetes authentication method that enables clients to authenticate with a Kubernetes Service Account Token. Enable the Kubernetes authentication method. Vault accepts this service token from any client within the Kubernetes cluster.