How to Install and Configure Consul Server on Ubuntu 18.04

1. How do I set up a consul server?
2. How do I know if consul is installed?
3. How do I update my consul?
4. What is consul Linux?
5. How do I access a consul server?
6. What port does consul run on?
7. How does HashiCorp Consul work?
8. Where is consul config file?
9. What is consul client?
10. How do I upgrade my Hashicorp vault?
11. What is consul backend?
12. What is consul tool?
13. Is consul a load balancer?

How do I set up a consul server?

These setup steps should be completed on all Consul hosts.

1. Install Consul.
2. Verify the installation.
3. Prepare the security credentials.
4. Configure Consul agents.
5. Configure the Consul process.
6. Start the Consul service.
7. Setup Consul environment variables.
8. Bootstrap the ACL system.

How do I know if consul is installed?

To verify Consul is properly installed, run consul -v on your system. You should see help output. If you are executing it from the command line, make sure it is on your PATH or you may get an error about Consul not being found.

How do I update my consul?

On each server, install version B of Consul. One server at a time, shut down version A via consul leave and restart with version B. Wait until the server is healthy and has rejoined the cluster before moving on to the next server. Once all the servers are upgraded, begin a rollout of clients following the same process.

What is consul Linux?

Consul is a service mesh solution providing a full featured control plane with service discovery, configuration, and segmentation functionality. Each of these features can be used individually as needed, or they can be used together to build a full service mesh.

How do I access a consul server?

Click on the "Nodes" option in the top navigation bar to go to the nodes page. There you'll find an overview of the entire datacenter including the health status of each node, IPAddress, number of registered services, and a leader badge indicating which node is hosting the leading Consul server.

What port does consul run on?

Consul requires up to 6 different ports to work properly, some on TCP, UDP, or both protocols.
...
Ports Table.

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.

Where is consul config file?

Place them in a file at /etc/consul. d/server/config.

What is consul client?

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 do I upgrade my Hashicorp vault?

Perform these steps on each standby:

1. Properly shut down Vault on the standby node via SIGINT or SIGTERM.
2. Replace the Vault binary with the new version.
3. Start the standby node.
4. Unseal the standby node.

What is consul backend?

The Consul storage backend is used to persist Vault's data in Consul's key-value store. In addition to providing durable storage, inclusion of this backend will also register Vault as a service in Consul with a default health check. High Availability – the Consul storage backend supports high availability.

What is consul tool?

Consul is a Hashicorp based tool for discovering and configuring a variety of different services in your infrastructure. It is based and built on Golang. ... Multi Datacenter Deployment − Consul supports multiple datacenters. It is used for building additional layers of abstraction to grow to multiple regions.

Is consul a load balancer?

Consul is a free and open source tool that provides service discovery, health checking, load balancing, and a globally distributed key-value store. ... This is the job of the load balancing layer.