Consul

Setup Consul Cluster on Ubuntu 20.04|18.04|16.04

Setup Consul Cluster on Ubuntu 20.04|18.04|16.04
  1. How do I set up a consul cluster?
  2. How do you install a consul?
  3. How do I start the consul in server mode?
  4. Where is consul config file?
  5. How do you get to Consul UI?
  6. How do I change my consul port?
  7. How do I know if consul is installed?
  8. How does HashiCorp Consul work?
  9. How do I update my consul?
  10. What is consul configuration?
  11. Which command is used for DNS queries consul?
  12. What port does consul use?

How do I set up a consul cluster?

Follow the steps given below for a fully functional consul cluster.

  1. Install and Configure Consul on All the Three Nodes. ...
  2. Step 1: CD into bin directory and download Linux consul binary from here cd /usr/local/bin sudo curl -o consul.zip https://releases.hashicorp.com/consul/1.6.0/consul_1.6.0_linux_amd64.zip.

How do you install a consul?

To install Consul, find the appropriate package for your system and download it. Consul is packaged as a zip archive. After downloading Consul, unzip the package. Consul runs as a single binary named consul .

How do I start the consul in server mode?

Start Consul client

You'll set the bind address to the IP address of the second VM ( 172.20. 20.11 , specified in the Vagrantfile) and the name to agent-two . Don't include the -server flag and the agent will start in client mode. Consul will run in the foreground of your terminal.

Where is consul config file?

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

How do you get to Consul UI?

If you have a local development agent, started with consul agent -dev , you can open a browser window and navigate to the UI, which is available at the /ui path on the same port as the HTTP API (port 8500 ).

How do I change my consul port?

  1. Mobile →
  2. Actions →
  3. Codespaces →
  4. Packages →
  5. Security →
  6. Code review →
  7. Project management →
  8. Integrations →

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 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.

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 configuration?

When loading configuration, Consul loads the configuration from files and directories in lexical order. For example, configuration file basic_config. json will be processed before extra_config. json . Configuration can be in either HCL or JSON format.

Which command is used for DNS queries consul?

Query Consul DNS and BIND

You can use the following example service configuration file and registration command. To ensure that Consul DNS and your DNS server are configured correctly, use a dig query for the service you've registered. ; <<>> DiG 9.10. 3-P3 <<>> @127.0.

What port does consul use?

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

UseDefault Ports
HTTP: The HTTP API (TCP Only)8500
HTTPS: The HTTPs APIdisabled (8501)*
gRPC: The gRPC APIdisabled (8502)*
LAN Serf: The Serf LAN port (TCP and UDP)8301

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