consul acl configuration example

For use with Consul's ACL system, use the CONSUL_HTTP_TOKEN environment variable. The first step for bootstrapping the ACL system is to enable ACLs on the Consul servers in the agent configuration. Consul is a distributed, highly-available, and multi-datacenter aware tool for service discovery, configuration, and orchestration. When securing your datacenter you should configure the ACLs first. That token should be created with agent:read as well as a namespace block with the other relevant permissions for running Nomad in the intended namespace. Configuration can be in either HCL or JSON format. and followed by the option you want to change. The down_policy extend-cache is to apply This token is created when Consul initially bootstraps the cluster. Separation and isolation in keys in consul along with ACLs that enforce that separation is important here. Starting with Consul 1.4.0, the consul.AclPolicy can be used to managed Consul ACL policies. For security reasons, I have created an ACL that allows the traefik root to read. This is especially useful to manage the anonymous and the master token with Terraform: $ terraform import consul_acl_token.anonymous 00000000-0000-0000-0000-000000000002 $ terraform import consul_acl_token.master-token 624d94ca-bc5c-f960-4e83-0a609cf588be The easiest way to install Consul on Kubernetes is by using the Helm chart: helm install consul stable/consul This installs Consul into the default namespace. In this example, we are configuring the default policy of "deny", which means we are in whitelist mode, and a down policy of "extend-cache", which means that we will ignore token TTLs during an outage. The ACL administrator uses the Each directory contains a docker-compose.yml that contains a basic The polling interval is in milliseconds and tells Ocelot how often to call Consul for changes in service configuration. If the service is not registered with the same agent, "alias_node": "" must also be specified. The option can be overridden on an instance basis with the traefik.consulcatalog.connect tag. Series introduction. datacenter = "dc1" data_dir = "/opt/consul" encrypt = "qDOPBEr+/oUVeOFQOnVypxwDaHzLrD+lvjo5vCEBbZ0=" Update ACL token. using Pulumi; using Consul = Pulumi. It looks like it does not consider TLS or ACL. ContainerPilot uses Hashicorp's Consul to register jobs in the container as services. If youre using the Kerberos integration, you must also publish your Kerberos port (for example, --publish 8443:8443). If the group level Consul namespace is configured, this namespace will take precedence over all other options.. NOTE The etcd backend supports etcd v2 and v3. ; consul.health-summary: Collects information about each Step 1: On consul-1 server, start the consul service. GitHub. $ docker-compose run --rm consul-cli acl --token=`cat master.token` create --name="bob" --rule="key:bob:write" | tr -d "\r" > bob.token $ docker-compose run --rm consul PATRONI_ETCD_PROXY: proxy url for the etcd.If you are connecting to the etcd using proxy, use this parameter instead of PATRONI_ETCD_URL; PATRONI_ETCD_URL: url for the etcd, in format: http(s)://(username:password@)host:port; PATRONI_ETCD_HOSTS: list of etcd endpoints in format host1:port1,host2:port2,etc; PATRONI_ETCD_USE_PROXIES: If this In this example, you are configuring the default policy of "deny", which means the datacenter is in a mode to only allow explicitly named resources, and a down policy of "extend-cache", which means that the agents will ignore token TTLs during an outage. Example 2. Consul-related Variables (only set for connect native tasks) CONSUL_HTTP_ADDR: Specifies the address to the local Consul agent. You will need a Consul token to allow Terraform enough access to configure Consul ACLs. Example. Starting with Consul 1.5.0, the consul.AclAuthMethod resource can be used to managed Consul ACL auth methods. Starting with Consul 1.5.0, the consul.AclAuthMethod resource can be used to managed Consul ACL auth methods. What we are trying to achieve is to automate Consul ACL Tokens generation and lifecycle using the Vault Consul Secret Engine along with Vault Agent Caching. Dynamic configuration settings. /usr/local/bin/consul members. Secure access control: operator-only access. An ACL that allows write access to the vault key would look like this: Consul ACLs are composed of a token (shown as ID ), a name, a type, and a set of rules. Hashicorp recommendations are to give exact hostname match rules on write for node and agent to allow catalog and internal operations by the agent. The following are 30 code examples for showing how to use consul.Consul(). To do this you will need to open your CONSUL installation through any internet browser and log in with the administration user (initially it is the [email protected] user with the password 12345678). Note: AWS can control access to S3 buckets with either IAM policies attached to users/groups/roles (like the example above) or resource policies attached to bucket objects (which look similar but also require a Principal to indicate which entity has those permissions). For example, to change the rule, you could add the tag traefik.http.routers.my-service.rule=Host (`example.com`). Where does the configuration file live and what can I configure in it? ACL Token If you are using ACL with Consul Ocelot supports adding the X-Consul-Token header. You can get the agent ACL token from Consul admin. Passing configuration file key-value pairs. You can pass as many fragments as needed. Provide an ACL system and enable traffic encryption. The person responsible for administrating ACLs in your organization specifies one or more authentication rules to define a policy. The Omnibus GitLab recommended configuration for a PostgreSQL cluster with replication failover requires: A minimum of three PostgreSQL nodes. For development, after you have installed consul, you may start a Consul Agent using the The following settings impact the configuration of the Kubernetes backend for the autocluster plugin: K8S Scheme Here is the one from our consul cluster. IP addresses are resolved in order, and duplicates are ignored. Live. Configuration info: The alias check configuration expects the alias to be registered on the same agent as the one you are aliasing. For example, if you have an auth service, Consul agents can be configured to automatically use a token by creating a json file (like agent-acl.json) in the consul configuration directory: { "acl_token": "d414c3e6-c498-64fa-5a2e-1a942425a410"} Using Tokens with curl. Consul is an excellent piece of software, really. In consul, you'd want to keep all of that configuration in /clusters/foo/* and have a unique ACL that allows for access only keys with the /clusters/foo prefix. Replace the encrypt parameter value with the output from running consul keygen on any host with the consul binary installed. For example, instead of having an HCL config file that contains the following: bootstrap_expect = 3. Ingress Gateways. Lets assume you've got a cluster of servers that pull configuration from consul. Consul is a service that allows us to connect and secure services across platforms and clouds. In this scenario, the client will enforce ACLs, so both servers and clients should Failed to create new token: Unexpected response code: 401 (ACL support disabled) I am trying to run this command . Here is an example Nomad agent configuration that runs in both client and server mode. ; By using the /v1/acl/bootstrap endpoint. Even though this example uses LDAP, the concept applies to all auth methods. You'll need a running Consul Server on your local machine, or a Consul Agent connected to a Consul Server cluster. ACLs must be enabled to use this feature. Prior to EdgeX's Ireland release, the communication to Consul uses plain HTTP calls without any access control (ACL) token header and thus are insecure. To use the Consul key-value store in our Spring Boot application, we first have to import consul config starter dependency. The Consul policy below shows an example policy configuration for a Nomad server: consul_acl_binding_rule. Ingress gateways are configured as services in Consul and act as the entry point for traffic that is inbound from non-mesh services. If Consul ACLs are enabled, the allow_unauthenticated configuration parameter will control whether a Consul token will be required when submitting a job with Consul namespace configured. You can get the agent ACL token from Consul admin. Enable Consul ACLs. For more information, please see: Consul documentation. The easiest way to install Consul on Kubernetes is by using the Helm chart: helm install consul stable/consul This installs Consul into the default namespace. Update all four files in api_a, api_b, api_c and api_d consul-tls folders. Once you have CONSUL running on the server, there are some basic configuration options that you probably want to define in order to start using it. Step 3: Download the consul binary to /opt directory. allows the addition, modification and deletion of ACL keys and associated rules in a consul cluster via the agent. Step 2: Head over to consul downloads page. This project is still developing. Heres a quick example of this process. The environment directories just created are all empty. Step 3: Check the cluster status by executing the following command. Implementations may vary depending on the needs of the organization, but the following procedure describes the basic workflow for for creating and implementing ACLs: 1. Access Control List Token to include in all Consul requests. The most secure access control implementation restricts tokens with acl = "write" policies to only one or a few trusted operators. 2. The previous article introduced how to use Consul to store configuration of ASP.Net Core (or .Net also). At the core, ACLs operate by grouping rules into policies, then associating one or more policies with a token. Starting with Consul 1.5.0, the consul_acl_binding_rule resource can be used to managed Consul ACL binding rules. Ansible Configuration Settings; Controlling how Ansible behaves: precedence rules; YAML Syntax; modification and deletion of ACL keys and associated rules in a consul cluster via the agent. The following are 30 code examples for showing how to use consul.Consul(). These examples are extracted from open source projects. Create a toml file with traefiks desired static configuration. Consul systemd unit file You have Consul binaries and a reasonably basic configuration and now you just need to start Consul on each server instance; systemd is popular in most contemporary Linux distributions, so with that in mind, here is an example systemd unit file Pulumi Registry; AclPolicy; AclPolicy. Install & Configure Consul Agent On Client Mode. Keep in mind that in order for the routes to be stored in consul, this toml file must specify consul as the provider/. Consider every service as Connect capable by default. using Pulumi; using Consul = Pulumi. Lets assume you've got a cluster of servers that pull configuration from consul. domain, the query will be resolved upstream. Note that the Nomad command line client will send requests for client endpoints such as alloc exec directly to Nomad clients whenever they are accessible. Some parameters, like loop_wait, ttl, postgresql.parameters.max_connections, postgresql.parameters.max_worker_processes and so on could be set only in the dynamic configuration. Camel Components. The example will be fun and simple, but the techniques should be generalizable to a lot of problems. In your local web browser, you can now access the consul web interface by typing: merge-- A dictionary to merge with the results of the grain selection from lookup_dict.This allows Pillar to override the values in the lookup_dict.This could be useful, for example, to override the values for non-standard package names such as when using a different Python version from the default Python version provided by the OS (e.g., python26-mysql instead of python-mysql). A node only needs an agent token defined with permissions that allows the node to register itself with Consul. Consul. In this short series, we will look at how we can integrate the Spring Boot application with HashiCorp Consul. When securing your cluster you should configure the ACLs first. and get the link for Linux 64 bit. Failing to do so prevents Git operations with Kerberos. We set default_policy deny to block any operation not specifically allowed. API API Docs. consul.allow_stale: Allows any Consul server (non-leader) to service a read. Secrets are stored in a JSON file (.json) within the environments directory, and group descriptions are stored in a drop-in directory with the same base name, but with an extention of .d instead of .json (following the Linux drop-in configuration style directories used by programs Example Usage resource "consul_acl_auth_ DynamoDB Table Install Installation & Configuration. Step 4: Unzip consul binary. With the Ireland release, that situation is By default, the Agent client is expected to be at localhost:8500.See the Agent documentation for specifics on how to start an Agent client and how to connect to a cluster of Consul Agent Servers. The token is a unique value that should be hard to guess. Before starting the traefik process, you must create a toml file with the desired traefik static configuration and pass it to traefik when you launch the process. So, we need something which can help us to achieve this thing. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. Guides How-to Guides. First, define your Consul address as part of the Terraform provider configuration. Install Installation & Configuration. In order to use the consul_namespace feature, Nomad will need a token generated in Consul's default namespace. When all servers had this config file, I restarted the Consul server on each server separately and verified that it came back and joined the cluster. Now lets copy our previous state from tag to token for each API: cd ~/networknt cp -r light-example-4j/discovery/api_a/tag light-example-4j/discovery/api_a/token cp -r light-example-4j/discovery/api_b/tag light If so, do you ha e your template configu red with appropriate token? These examples are extracted from open source projects. Install Installation & Configuration. For official environments, we must set acl_default_policy=deny while having all operations to the Consul server provide an acl_token in the header. Consul uses Access Control Lists (ACLs) to secure access to the UI, API, CLI, service communications, and agent communications. allows the addition, modification and deletion of ACL keys and associated rules in a consul cluster via the agent. In common practice Consul tokens are UUIDs, but they can be any value. For example, consider the security part of the consul which is not covered in the base consul setup or configuration. To do this, add the receiver item to the service > pipelines > metrics > receivers section of your configuration file.. See configuration examples for specific use cases that show how the Splunk OpenTelemetry Collector can integrate and complement existing First, Consul provides both Ingress and Terminating gateways that will allow traffic to safely enter and exit the mesh. Install & Configure Consul Agent On Client Mode. Guides How-to Guides. For example, a node can use Consul directly as a DNS server, and if the record is outside of the "consul." Create a toml file with traefiks desired static configuration. API API Docs. and get the link for Linux 64 bit. My suggestion is to backup and create a clean install, then add the gossip encryption, then enable tls after. Integrate with Consul service discovery and configuration store. I can't configure the token associated to this ACL for traefik. Keep in mind that in order for the routes to be stored in consul, this toml file must specify consul as the provider/. Consul enables rapid deployment, configuration, and maintenance of service-oriented architectures at massive scale. To update the configuration of the Router automatically attached to the service, add tags starting with traefik.routers. Available in Consul 1.0 and later, the HCL support now requires an .hcl or .json extension on all configuration files in Sink is an object containing keys to sink objects, where the key is the name of the sink. Example Usage. ACL token for the consul is configured in the consul.yml file. Step 2: Start consul on other two servers (Consul-2 and consul-3) using the following command. This configuration varies by auth method. 6 votes. A minimum of three Consul server nodes. In the case of LDAP, Vault needs to know the address of the Open a command prompt and cd to the Consul.Test folder. In the current EdgeX architecture, Consul is pre-wired as the default agent service for Service Configuration, Service Registry, and Service Health Check purposes. Introduction. ; consul.ca-file: File path to a PEM-encoded certificate authority used to validate the authenticity of a server certificate. As they state in their Intro page : Consul has multiple components, but as a whole, it is a tool for discovering and configuring services in your infrastructure Consul is well documented, robust, fast, replicated, datacenter If set to true, Traefik will consider every Consul Catalog service to be Connect capable by default. For more details, see Amazon's documentation about S3 access control. You can pass that configuration fragment via the -hcl parameter (more info here) in the following way: -hcl='bootstrap_expect = 3'. Here is an example Nomad agent configuration that runs in both client and server mode. CONSUL_HTTP_TOKEN: Specifies the Consul ACL token used to authorize with Consul. API API Docs. Notice that the server parameter is set to true to indicate that this instance will run in server mode. Create the policy using consul acl policy create. In consul, you'd want to keep all of that configuration in /clusters/foo/* and have a unique ACL that allows for access only keys with the /clusters/foo prefix. In this talk, Kong Cloud engineer Robert Paprocki talks about how Consul ACLs shaped their service networking and security architecture. A Consul system consists of Consul servers and clients. API gateway SaaS provider, Kong Cloud is using Consul, Terraform, and Vault to automate and integrate their management of ACLs and ACL tokens. For example: Defaults to false.. sink - This object provides configuration for the destination to which Consul will log auditing events. Etcd. config.json file have following details The consul field in the ContainerPilot config file configures ContainerPilot's Consul client. # Consul Token for service registry and discovery consulToken: d08744e7-bb1e-dfbd-7156-07c2d57a0527 Also if you use the 3 backticks your code (there is a <> in the editor as well) is formatted properly so its readable to others. Hi, I am looking to use the KV function of consul to configure traefik. For example a component may have security settings, credentials for authentication, urls for network connection and so forth. datacenter (string: "dc1") - Specifies the data center of the local agent. add a proxy section to the connect.sidecar_service section of the Consul container's configuration. When using alias_node, if no service is specified, the check will alias the health of the node.If a service is specified, the check will alias It has many usages, such as service discovery, service mesh, or key-value store. This will ensure that the Docker process has enough permissions to create the configuration files in the mounted volumes. Some other parameters like Guides How-to AclAuthMethod; AclAuthMethod. Source Project: dropwizard-consul Source File: ConsulFactory.java License: Apache License 2.0. Watches look to Consul to find out the status of other services. In this example, you are configuring the default policy of "deny", which means Consul will deny access to resources unless the request uses a token with explicitly granted privileges, and a down policy of "extend-cache", which means that the agents will Dynamic configuration is stored in the DCS (Distributed Configuration Store) and applied on all cluster nodes. A minimum of three PgBouncer nodes that track Instruct Consul Template to use a configuration file with the -config flag: $ consul-template -config "/my/config.hcl". Hi, There are two ways to bootstrap the ACL system: By providing the acl.tokens.master field in the json configuration file with a value that you generate yourself (in the example above that is b1gs33cr3t). Secrets and group descriptions. One or more Consul servers form a cluster to store all the data like KV data and the service catalog. For example, to change the number of expected Consul servers before a bootstrap starts, you can pass -bootstrap-expect . using Pulumi; using Consul = Pulumi. Guides How-to AclAuthMethod; AclAuthMethod. To interact with Consul, find the service with: kubectl get svc consul. It indicates that the service receives requests on port 80. What You'll Learn. API API Docs. Trying to jump to the end with all of it is probably more confusing. https://consul:8500 ). Documentation for the consul.AclBindingRule resource with examples, input properties, output properties, lookup functions, and supporting types. Tokens with the policy acl = "write" grant the holder unlimited privileges, because they can generate tokens with any other resource and policy. The configuration is loaded into addresses (Addresses: - Specifies configuration for connecting to Consul. Ansible Configuration Settings; Controlling how Ansible behaves: precedence rules; YAML Syntax; modification and deletion of ACL keys and associated rules in a consul cluster via the agent. consul_acl_token can be imported. # Consul Token for service registry and discovery consulToken: d08744e7-bb1e-dfbd-7156-07c2d57a0527