GitLab Runner to make sure they'll work. Setting the number of concurrent jobs too high on our runners would also result in a poor experience, because all jobs leverage the same CPU, memory, and storage in order to conduct the builds. Sylvia is a Senior DevOps Architect focusing on architecting and automating DevOps processes, helping customers through their DevOps transformation journey. The GitLab Runner system logs show me the following errors: So the error seams somehow to be related to Docker machine. running on Spot instances, Sebastian is a Senior Cloud Application Architect with AWS Professional Services. Anyone have any idea why the config.toml file revert back and how to prevent it ? If you work in the Information Technology field today, you have more than likely heard the term Continuous Integration, Continuous Deployment/Delivery; aka CICD. Take some time to review the resources you have deployed, and practice the various runner administrative tasks that we have covered in this post. Create a t2.micro ubuntu instance that will serve as the runner manager instance. This amount depends on the machine type. The name of the security group is the value for amazonec2-security-group, click on the security group to navigate to the group dashboard for more details. enter the values to the array and that is it. Error decoding json payload unexpected EOF, This job is stuck, because the project doesn't have any runners online assigned to it. Once this capacity is reached for every runner, any new jobs will be in a Queued/Waiting status until the current jobs complete, which would be a poor experience for our team. This project documents configuration and tools for operating an autoscaling Obtain the runner registration tokens of the Gitlab projects that you want registered to the Gitlab Runner. It ochestrates/managers the instances. Announcing Design Accessibility Updates on SO, gitlab-runner Checking for jobs failed . We need a setup that will just run for the time needed to complete the job. I'm still on GitLab 14, so I assume that's not the issue. In the AWS console, navigate to the IAM service and select Policies on the left pane and select Create Policy. Use the JSON tab and paste the following code, replacing the account number with yours (no braces). We also saw how easy it was to clean up the entire Gitlab Runner architecture by simply deleting a CloudFormation stack. We will walk through the following tasks: The code in this post is available at https://github.com/aws-samples/amazon-ec2-gitlab-runner.git. Provide the previously created aws access and secret keys for amazonec2-access-key and amazonec2-secret-key respectively. Your developers will be able to spend less time worrying about things like how their application is deployed, permission issues, testing, and QA, and more time focusing on bringing innovation to your applications. If this is not what you need, most likely, leave it empty. There are different executor types for gitlab-runner, but for us, we are interested in docker+machine, specified during the registration process. You may customize the Dockerfile to install your own requirements. Why did the folks at Marvel Studios remove the character Death from the Infinity Saga? this will list all the avialable subnets with entries for the owner vpc. Specify the machine type you want to run in the amazonec2-instance-type field. gitlab-runner register --non-interactive --url "https://gitlab.com/" --registration-token "yourTokenGoesHere" --executor "docker" --docker-image "alpine:latest" --locked="false" --tag-list "shared-runner,docker,us-west-2,dev" --description "gitlab-shared-runner, Auto Remediation Using AWS Lambda and Amazon EventBridge, Execute queries in parallel against Snowflake using AWS Glue, A Gitlab account and source code repository, An AWS account with console access and appropriate permissions to create roles/users, A VPC with private subnet to deploy the runners into, .Gitlab-ci.yml file Contains the integration code for deploying your runners to AWS, shared-runner.json this will be a simple JSON file used to pass in environment-specific variables at run-time, shared-runner.template CloudFormation template file for the actual EC2 and associated resources. Most of the sections are self explanatory. follow the instructions below to install docker on the ubuntu instance, for more infomation and for other os distributions, see the official documentation. In her spare time, she enjoys biking, swimming, yoga, and photography. One example of a source code repository that is robust and feature-rich is GitLab. The role contains permissions required for the Gitlab Runner to execute pipeline jobs. EC2 spot price, GitLab Runner has the ability to automatically spin up and down VMs to make sure your builds get processed immediately. Prepare an S3 bucket for caching build dependencies, 3. All of a sudden, today GitLab CI failed to run jobs and shows me the following job output for all jobs that I want to start: I see in the AWS console that the EC2 instances do get created, but the instances always get stopped immediately by GitLab Runner again. @wobbit GitLab have released an updated version of Docker Machine which fixes the issue. In the meantime, GitLab have released a new version of their Docker Machine fork which upgrades the default AMI to Ubuntu 20.04. To modify the project setup, you should interact with rich strongly-typed If more permissions are needed, they can be added to the CloudFormation template in the shared-runners repo. check_interval defines the time interval in seconds at which gitlab runner communicates with the gitlab host to check for new jobs. In the CloudFormation console, you will see that the launch template is updated first, then a rolling update is initiated. Note: registration tokens containing hyphens tend to be buggy, so make sure you regenerate the token until it contains no hyphen. Input these variables as the Key and paste your respective AWS keys in the Value section like so: Selecting the Mask Variable box will keep unauthorized parties from viewing the values as seen above. Here we configure how the runner handles cache. For the sake of this tutorial, I am using us-east-2 (Ohio). (assuming you have not removed any of the files it created in this directory). For the purpose of this guide, we will need a gitlab account of course and an aws account, as we will be creating resources. At the minimum, you will have 3 avaialable zones (subnet), for the vpc. It falls back to sorting by highest score if no posts are trending. At the least, you should pass Gitlab has these services and capabilities built into its functionality, but there are several steps involved in setting up your repository to take advantage of them. I have Problem: I deployed the CloudFormation template, but no runner is listed in my repository. There are also times when you want to terminate an instance manually. The Shared configuration is very important, as this enables/disables cache sharing between runners. Create a directory where we will store our demo code. From your terminal run: Clone the source code repository found in the following location: Create a new project on your Gitlab server. GitlabRunnerAutoscalingManagerProps, This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository. scattered, and easy to get lost in. In the EC2 dasbboard, select your instance and click connect. Can You Help Identify This Tool? Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. During stack creation, an EC2 autoscaling group is created with the desired number of EC2 instances. Connect and share knowledge within a single location that is structured and easy to search. You may customize the Dockerfile before pushing it to Gitlab. Update the apt package index and install packages to allow apt to use a repository over HTTPS: Add Dockers official GPG key and setup the stable repository: Installation instructions as taken from the official website. As this instance needs to run 24/7, we will create a t2.micro linux (ubuntu) instance, which is just enough for this purpose. By default, EC2 Spot Instances are requested. installed on it. The easiest way is to launch an instance using an Amazon A launch template is created with the values in the properties file. Check the box associated with the assume-role-policy we just created, then click through the rest of the steps and create the user. I've also tried the 18 AMI but have the same problem. Assuming It's 1800s! We will be using s3 for cache, since the docker volume gets deleted once a job completes. Upgrading GitLab Runner as well as GitLab's Docker Machine fork to the newest versions do not fix the error. [disable_cache] disables docker volume cache. For this walkthrough, you need the following: The Gitlab Runner in this solution is implemented as docker executor. We will specify s3 as our cache location in the next section. continuous integration fleet powered by GitLab, Amazon Web Services (AWS), Docker is installed and running on the localhost/laptop. Using the new AMI worked for a bit but after sometime the /etc/gitlab-runner/config.toml reverted back to old configuration. Thanks for contributing an answer to Stack Overflow! This instance does not run jobs, but rather peforms the role of spinning up and down AWS spot instances on demand, that in turn, runs the job. Then, the temporary instance was terminated when the new instance was launched successfully. The green circle indicates that the Gitlab Runner is ready for use. These values are for amazonec2-subnet-id and amazonec2-zone respectively. The lifecycle hook ensures that the cleanup steps are conducted properly, and the autoscaling group launches another new instance to replace the old one. This updates the SSM parameter which stores the tokens. Visit gitlab's official documentations for more information of all the configurations options for gitlab-runner. We can utilize this information to validate that the system is working properly and determine if we need to modify any of our autoscaling parameters. Sadly, it falls to us to on AWS with Docker Machine: This step is necessary only if you want to enable gitlab ci tags: Tags are ways to say, run only jobs that has this tags on them. Make sure to enter docker+machine. That means that upgrading Docker Machine to the latest version released by GitLab will fix the issue without changing your runner configuration. Name the file shared-runner.json and paste the following code, replacing the values with the ones copied in previous steps: This step and file are necessary for deploying to multiple environments, as these parameters will override the CloudFormation parameters at run-time. Your ci jobs are never going to run every minute, so why pay Google or Amazon for minutes you never used? caching. Making statements based on opinion; back them up with references or personal experience. Our architecture offers a simple way to add and remove projects from the Gitlab Runner. To ensure that this need is met, we need to launch ec2 instances within the same vpc, utilizing any of the subnet network groups. Connect to your runner EC2 instance, and check /var/log/cfn-*.log files. pickup the vpc id, this is the value for amazonec2-vpc-id. In the configuration options, keep all the defaults and launch. With few clicks in the setup dashboard, you can setup and deploy gitlab runner in a Google Kubernetes cluster or Amazon. More like San Francis-go (Ep. is the name of the CLI profile you set up in the prerequisites section. Here we will configure how the runner ochestrates and spins up and down aws ec2 spot instances. In his free time, he really enjoys doing laundry. Update the sample-runner.properties file parameters according to your own environment. The lifecycle hook works like this: A CloudWatch event rule actively listens for the EC2 Instance-terminate events. A custom S3 Bucket can be configured: See example, During the provisioning process, utilize a cfn-init helper script to run a series of commands to install and configure the Gitlab Runner. We will be using CloudFormation and installing Docker to promote the use of infrastructure as code for our deploymentsautomating the build process for these runners. Having created the runner manager instance, we need to ssh into the instance and install docker, docker machine and gitlab runner. To make it even worse, setting up cache keys will not help as cached files get deleted onces the docker container volume gets unmounted. A Gitlab account (all tiers including Gitlab Free self-managed, Gitlab Free SaaS, and higher tiers). The template is parameterized, and the parameters are defined in a properties file. Azure and GCP suffer from similar problems. Install the latest version of GitLab Runner: Having installed all the necessary tools, it is time to register a runner. Each runner you register is listed in the [[runners]] section. This project provides a CDK construct to execute jobs on auto-scaled EC2 instances using the Docker Machine executor. How to deploy Gitlab Runner quickly and consistently across multiple AWS accounts. Copy the token value underlined in yellow in the Set Up a Specific Runner manually section: Save this for later, as we will be including it in the user-data section of our CloudFormation template. The main steps are as follows: This walkthrough will demonstrate how to deploy the Gitlab Runner, and how easy it is to conduct Gitlab Runner administrative tasks via this architecture. execute npx projen to update project configuration files. In short, you need a machine with GitLab Runner, Docker, and Docker Machine However, many companies prefer to use more robust source code repositories. To ensure that both the gitlab runner manager instance and the spot instances can connect within the same network, I suggest you run both instances in the same region and within the same network group. you don't pass --amazonec2-security-group, then Docker Machine will create AWS offers many tools of this kind and can be set-up using all native AWS resources. Really. It prevents your Furthermore, all changes are tracked in Git, which allows for versioning of the Gitlab Runner. The deploy script calls CloudFormation CreateStack API to create a Gitlab Runner stack in the specified environment. I believe you must reviewed accordingly using the link above. configuration documentation. Docker, and Docker Machine. The sample configuration in this Here is the logical sequence diagram for the work: For operational monitoring, the Lambda function also publishes custom CloudWatch Metrics for the count of active jobs, along with the target and actual capacities of the Autoscaling group. for autoscaling. To ensure that the changes take effect immediately (e.g., existing instances are replaced by new instances with the new configuration), we utilize an AutoscalingRollingUpdate update policy to automatically update the instances in the autoscaling group. Ignore the warning about cloning an empty repository. This includes an Auto-Scaling Group, Runner deploy role, Security group, and Instance Profile. You can now use the runner to deploy code to your AWS account without having to worry about permissions and roles in your projects CICD configurations, as the runner will handle this for you. Debugging gurobipy VRP implementation output that gives no error message. Familiarity with Git, Gitlab CI/CD, Docker, EC2, CloudFormation and. The following diagram displays the solution architecture. Utilizing the properties file and launch template makes it easy to update the Gitlab Runner. You can also add and remove any of the permissions listed in the SharedRunnerPipelineAccess policy. There are times when an autoscaling group instance must be terminated. covering how to autoscale GitLab Runners, but they are very long, slightly just to facilitate: If you wana use the same ubuntu that you runner is configured on you can get the ami by goint on: EC2->instances->instance ID (from the mannager) -> details -> AMI ID. There are a number of very detailed and thorough documents on gitlab.com The Scaling-Up operation will ignore the Autoscaling Groups cooldown period, which will help ensure that our team is not waiting on a new instance, whereas the Scale-Down operation will obey the groups cooldown period. and cross compiling/building with multiarch. This project has an example config.toml A lifecycle hook is attached to the autoscaling group on instance termination events. Consult for other os types. This will allow the runner to be able to assume roles in the account we want to deploy our resources to. According Amazon, Spot Instances are available at up to a 90% discount compared to On-Demand prices and you can use Spot Instances for various stateless, fault-tolerant, or flexible applications such as big data, containerized workloads, CI/CD, web servers, high-performance computing (HPC), and other test & development workloads. rev2022.8.2.42721. For easy of explanation, I will paste the full list of configuration options here, and then do a walk through of each option. Navigate to the EC2 service and select Launch Instance. Copy the value highlighted below: Create a new repository specifically for your runner code; you can name it something like shared-runners. In your repo, you will be creating three files: Gitlab requires a token during runner set-up, which can be accessed in the Settings section of your repository. But here are the key notes. To remove projects from the Gitlab Runner, follow the steps described above, with just one difference. deploy directly from AWS accounts (without AWS Access Key), Then, run the deploy script to udpate the Gitlab Runner stack. Find centralized, trusted content and collaborate around the technologies you use most. Follow the instructions and ssh into the instance. What is the nature of a demiplane's walls? See example, MachineConfiguration, To deploy from within your GitLab Runner Instances, you may pass a Role with the IAM Policies attached. Deploys the Autoscaling GitLab Runner on AWS EC2 with the default settings mentioned above. The helper script ensures that the Gitlab Runner setup is consistent and repeatable for each deployment. You have completed the walkthrough. Gitlab CI is a tool utilized by many enterprises to automate their Continuous integration, continuous delivery and deployment (CI/CD) process. This set-up can be parameterized in order to be used to deploy to multiple accounts, one per branch in your repo. Save the generated access key as we will be using it soon. On the left-pane, navigate to Settings->CI/CD, and click Expand on the Runners tab. Nodejs and npm installed on the localhost/laptop. Gitlab uses these tags to select which runner to use to run the build as mentioned earlier. A series of fantasy books, different (but also not really) brother and sister protagonists in every book. default docker image: Specify your default docker image, when a job in gitlab-ci.yml file does not specify an image, this default image will be used. There are times when you would want to update the Gitlab Runner. Below is an example of updating the Gitlab Runner instance type. I'm using GitLab 14.8 and tried GitLab Runner 14.9 and 14.10. Also create a bucket. With how easy and quick this setup is, you will most likely use it, but at the end of the tunnel lies more bills. Relaunch the instances in the Gitlab Runner autoscaling group. I updated the answer accordingly. Paraphrasing, the first Docker Machine using the EC2 driver will create an The commands include stopping the Gitlab Runner gracefully when all running jobs are finished, de-registering the runner from Gitlab projects, and signaling the autoscaling group to terminate the instance. Name can be cache.your-domain.com. incapable of creating a key pair (it can only use an existing key pair). This, when used with spot instances, can save us up to 90% cost, improve performance with little or no downtime. Autoscaling GitLab Runners on AWS with Docker Machine. runner executor:: For the runner executor. Go to Runners page, Gitlab-runner using shell executor run Docker command, How to use docker-in-docker on locally installed gitlab-runner in privileged mode, Gitlab Runner autoscaling on AWS EC2 - failing to spawn instances. As new projects are added to your enterprise, you may want to register them to the Gitlab Runner, so that those projects can utilize the Gitlab Runner to run pipelines. Its configuration is stored in a properties file called sample-runner.properties. When one is detected, the event rule triggers a Lambda function. For bigger projects, for example with webpack, this won't be enough memory. Runners can be registered on a project level, or group level. Instead of adding new tokens to the RunnerRegistrationTokens parameter, remove the token(s) of the project that you want to dissociate from the runner. GitlabRunnerAutoscalingCacheProps. "deb [arch=amd64] https://download.docker.com/linux/ubuntu, "amazonec2-tags=gitlab-runner-autoscaler,gitlab,group-runner", "amazonec2-security-group=launch-wizard-1", Step 2 - Install Docker and Docker Machine. Keep amazonec2-request-spot-instance set to true of course, otherwise it will launch regular, on demand ec2 instance. Group level runners are available for all projects in the group, while project specific runners are just for a single repository. Nowadays, there are dozens of companies that have specialized tools for handling CICD. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. There are various ways to register runners in gitlab, it all depends on your use case. Note that if you terminate the instance by using the ec2 terminate-instance command, then the autoscaling lifecycle hook actions will not be triggered. We walked through the deploying, updating, autoscaling, and terminating of the Gitlab Runner. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. gitlab ci token: Enter the token you just obtained, gitlab runner description: Enter a description for the runner. Each runner defines one [[runners]] section in the configuration file. In this document, I will try to collate Select any subnet of your choice, (make sure its owner vpc is the one you picked in step 2). gitlab cordinator url: this is your gitlab host url. By default, t3.nano is used for the manager/coordinator and t3.micro instances will be spawned. Study it and decide the region that best fits your budget. amazonec2-region specifies the region where the ec2 instance will be setup. is the name you chose for the CloudFormation stack. The properties file specifies the infrastructure configuration, as well as the environment in which to deploy the template. GitLab Runner suddenly fails to run jobs using Docker Machine and AWS Autoscaling, https://about.gitlab.com/blog/2022/04/18/gitlab-releases-15-breaking-changes/, Learn more about Collectives on Stack Overflow, San Francisco? After you're finished editing the configuration, restart the service: 1 It would be nice to have Machine Image (AMI) published by the ami-gitlab-runner Navigate again on the left pane to Settings->CICD and expand the Variables section. By registering a runner, we establish a connection between our gitlab host and our runner manager. Create a file named .gitlab-ci.yml and paste the following code replacing YourAccountHere in the ROLEARN variable with your own account number: Note that the use of tags here is not tagging the AWS resources created. Clone your newly created repo to your laptop. . We can still have it tagged but disable it later in the gitlab ui by setting the run untagged jobs option to true. We provided a simple Dockerfile in order to build this image. For enterprises running hundreds of pipelines across multiple environments, it is essential to automate the Gitlab Runner deployment process so as to be deployed quickly in a repeatable, consistent manner. Enter GitLab. properly initialize its dependencies. If you want to tear down the instance and delete the key pair to start over, the global section defines rules that applies to all runners. On the side panel, select Virtual Private Cloud (VPC), and navigate to subnets. When terminating an instance, you must ensure that the Gitlab Runner finishes executing any running jobs before the instance is terminated, otherwise your environment could be left in an inconsistent state. If no existing Vpc is passed, a cheap VPC with a NatInstance (t3.nano) and a single AZ will be created. you've satisfied its assumptions: If you need to change the AMI, region, or security group, then take a minute Note: The gitlab runner must have network connection with every ec2 instance that it needs to create. What is the music theory related to a bass progression of descending augmented 4th from ^7 to ^4? Where do you end up when you cast Dimension Door from an extradimensional space? to edit the Makefile. You can pass the same driver What is the gravitational force acting on a massless body? Pick up the subnet id and the availability zone (just the alphabet, between a-f). The user runs a deploy script in order to deploy the CloudFormation template. All rights reserved. The runner manager instance (gitlab in the t.micro instance) needs to have network access to the region where the machines will be provisioned. All the changes made is gone and reset automatically. This is where the final work is. Autoscale the Gitlab Runner based on workloads. You'll need to fill in your own AWS API keys. amazonec2-block-duration-minutes specifies the maximum number of minutes your instance needs. Obtain the token by selecting the projects Settings > CI/CD and expand the Runners section. Once created in the root of your repo, Gitlab will automatically recognize this file and run it based on your specifications. AWS key pair in a manner unsafe for concurrency, but GitLab Runner AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY are predefined, and Gitlab will use these values when running your jobs if they are specified. For example: Update the Gitlab Runner stack. Then it is used to launch instances. one called docker-machine. Run the following command to relaunch the instances: 2022, Amazon Web Services, Inc. or its affiliates. worker machines from reaching Docker Hub. If any For example, during an autoscaling scale-in event, or when the instance is being replaced by a new instance during a stack update, as seen previously. 468), Monitoring data quality with Bigeye(Ep. Now lets create the JSON parameters file in which we can pass in environment-specific variables at creation time. This step is the consequence of what I consider a failure of GitLab Runner to Our .gitlab-ci file will be relatively simple, for more information on how to set-up the file for more complicated tasks, visit https://docs.gitlab.com/ee/ci/yaml/. Refer to the gitlab-runner.yaml file for a description of these parameters. On the other hand, you would want to remove the Gitlab Runner from a project if it no longer wants to utilize the Gitlab Runner, or if it qualifies to utilize the Gitlab Runner. See also Create and Publish CDK Constructs Using projen and jsii. Is any finite-dimensional algebra a sub-algebra of a finite-group algebra? There are several ways these Gitlab runners can be created and managed. This post will detail setting up your repository and Runners using Amazon Elastic Compute Cloud (EC2) service, which will be used to run your CICD jobs and deploy your application and resources into your AWS account(s). It is used in conjunction with GitLab CI/CD, the open-source continuous integration service included with GitLab that coordinates the jobs, according to Gitlab Docs. Use the Tags section of your projects .gitlab-ci.yml to select the appropriate runner for your job. Asking for help, clarification, or responding to other answers. Trending sort is based off of the default sorting method by highest score but it boosts votes that have happened recently, helping to surface more up-to-date answers. We also need the ID for Amazons Linux 2 AMI. Copy the demo repo files into your newly created repo on your laptop, and push it to your Gitlab repository. All you need is to get the targt project or group registration token. separately written beginner-friendly introductions to both: Here is the basic outline for deploying a new autoscaling GitLab Runner fleet Before you create this instance, take your time to study AWS spot instance pricing for various machine types by regions. add something like "amazonec2-ami=ami-02584c1c9d05efa69" to your MachineOptions: You can get a list of Ubuntu AMI IDs here. Based on the tags for this particular example, it will be a shared-runner, the runner will have the docker agent installed, be deployed in the us-west-2 region, and in the dev environment. We also provide necessary access and secret keys, as well as bucket name and location to the runner. Do not use the option amazonec2-private-address-only. In practice, how explicitly can we describe a Galois representation? Use Specific runners when you want to use runners for specific projects. Thus, the installation of Docker fails on the EC2 instance spawned by Docker Machine and the job cannot run. Hit Review policy name it assume-role-policy and finish creating it. How to enforce guardrails and best practices on the Gitlab Runner through IaC. Then create this instance in the region of your choosing. @Moritz - Yes - the runners are starting up with the correct AMI and I can see them in a docker-machine ls. You signed in with another tab or window. However they never complete the initialisation and gitlab-runner shuts them down to start new ones. See example, free; you are only charged for the data you store in it. This article demonstrated how to utilize IaC to efficiently conduct various administrative tasks associated with a Gitlab Runner.