terraform ecs task definition data

I am trying to deploy ECS task definition with Terraform. AWS ECS Fargate Task Definition Terraform Module. Unfortunately, that's not gonna be addressed, as stated here: hashicorp/terraform#16380 (comment). A data source is accessed via a special kind of resource known as adata resource, declared using a datablock: A datablock requests that Terraform read from a given data source ("aws_ami")and export the result under the given local name ("example"). aws_ecs_task_definition.self.revision can only be referenced, once the resource is created (in contrast to family, which is already present in code). If terraform destroy completes with no errors, it works fine without a depends_on. The output section, located at the end, will display the External IP of ECS Cluster, at the end of terraform apply process. We only use Terraform for the initial provisioning and when we use new services. On a first glance, the only thing that I needed was to specify on the task definition the version of Fargate to 1.4.0, but since I never worked with EFS before, and the Terraform docs forget to mention that you need to implement others resources to work with EFS properly, I suffered a little bit to figure out what I needed to get done. Published 3 days ago. Based on the above docs, OP's config shouldn't be failing because data.aws_ecs_task_definition.my-service depends on aws_ecs_task_definition.my-service.family, but it's failing in the plan* phase (my problem as well). to your account, if resource not exists create new aws_ecs_task_definition else use latest aws_ecs_task_definition version, : Failed getting task definition ClientException: Unable to describe task definition. By clicking “Sign up for GitHub”, you agree to our terms of service and Then move on to instance.tf and do the terraform apply. The data source and name together serve as an identifier for a givenresource and so must be unique within a module. status code: 400, request id: "my-service". If you are new to Docker, I highly recommend this course by Stephen Grider or the official… The ECS container definition data source allows access to details of a specific container within an AWS ECS service. Since anyway both sides of the conditional end up referencing the same value, as a quick fix I used "revision >0" in the conditional just to force it to be a boolean. FYI for everybody else stumbling over the issue: @skorfmann illustrated in this MR #10247 a better workaround using aws_ecs_task_definition.self.revision and explains why the discussed depends_on approach is not what you want! However, this causes a potential change in the terraform plan output, even though it's not actually going to change. By clicking “Sign up for GitHub”, you agree to our terms of service and Certain variables, such as `healthCheck`, `linuxParameters` I have multiple projects, each with their own Terraform to manage the AWS infrastructure specific to that project. Published a month ago. Data instance arguments may refer to computed values, in which case the attributes of the instance itself cannot be resolved until all of its arguments are defined. If not set, ECS will create a nonpersistent data volume that starts empty and is deleted after the task has finished. On the second pass the. Let's define our network resources in … This still seems to be a problem, if you just use what is on the docs you will get this: The only changed things are that this is inside a module and the name is frontshop. The name is usedto refer to this resource from elsewhere in the same Terraform module, but hasno significance outside of the scope of a module. I commented out the data and now it seems to be working better. The resource aws_ecs_service and the data aws_ecs_task_definition both expect that related resource aws_ecs_task_definition must be already created. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. I have the service and task definition configured via terraform and then to deploy I'm using Github actions where it seems I need to define the task definition again. 14. @dendrochronology sorry for the lack of response. Apparently, this allows Terraform to correctly resolve the dependencies and makes the data source behave as expected. One is Task Role to assume role access for container and another is Task Execution Role for ECS cluster to run on behalf of us, such as pulling image. @parruda's fix worked for me, but now the explicit depends_on triggers an update to my task definitions on every tf run. This will apply the changes to infrastructure, which in turn applies the new version of the ECS task, which causes a … Network Resources. This project is part of our comprehensive "SweetOps" approach towards DevOps. terraform apply -auto-approve terraform state rm aws_ecs_task_definition.this Next time these scripts are executed (and something has changed in task definition), the terraform does not know about the previous task definition (as it is not in its state) and therefore creating new version instead and dont delete old version. @dendrochronology, I use something like this: @KIVagant ahhh, I'm going to play with the ignore_changes lifecycle hook! Furthermore, it's discourage by the Terraform documentation itself. @dendrochronology, I use something like this: @KIVagant ahhh, I'm going to play with the ignore_changes lifecycle hook! In your fargate.tf file from earlier, add the following json into your task definition. privacy statement. Viewed 321 times 1. It depends on your goals. Create an ECS cluster and define a task with the above image; Configure CloudWatch Event Rule to periodically launch the ECS task; Throughout the post, I will describe the infrastructure in the form of terraform configuration with a full project example available on github. Edit: incorrectly said it failed in the apply phase instead of the plan phase. status code: 400, request id: "my-service". Even more curious, the resources don't exist in the statefile anyhow, and yet it fails? I was able to reproduce this by creating a simple resource first (a security group) then trying to perform a lookup. This appears to be a terraform pattern. In our case the template contains empty place for secrets which are filling after first install by Terraform and we don't want to allow it to change exist task definitions. And we control them manually after first install. You signed in with another tab or window. To make this simpler, we will use one role for both permissions. NOTE: In Terraform 0.12 and earlier, due to the data resource behavior of deferring the read until the apply phase when depending on values that are not yet known, using depends_on with data resources will force the read to always be deferred to the apply phase, and therefore a configuration that uses depends_on with a data resource can never converge. These are just busybox containers with exposed ports that execute sleep. error resurfaces and the state file is corrupt. Which is not the expected/desired result. Perhaps this is a terraform-level bug and not a provider-level? This issue isn't very clear to me. ; network_mode - (Optional) The Docker networking mode to use for the containers in the task. Apparently, this allows Terraform to correctly resolve the dependencies and makes the data source behave as expected. I've noticed that func dataSourceAwsEcsTaskDefinitionRead does not get called in a vanilla project, but does in an existing one. The source can be found here. Terraform import ECS task definition from another project. And we control them manually after first install. This step needs to be revisited because in the current setup the password will be passed through to the container as a plain text environment variable. What's curious is that when attempting the search using a vanilla state (completely empty), the plan and apply work as expected. Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Successfully merging a pull request may close this issue. This ensures that the retrieved data is available for use during planning and the diff will show the real values obtained. Seems like some folks claim that we should NOT be using a depends_on in the datasource for the task definition but upon the first run it always fails because the resource doesnt exist. The team uses Jupyter Notebooks a lot (locally). For my teams, that means abstracting out the management of the ECS cluster, ALB, Security Groups, R53 rules, databases, and S3 buckets into shared terraform that the platform/SRE team can manage. Ask Question Asked 6 months ago. In my case, the error came out because of json syntax error. data.aws_ecs_task_definition: Failed getting task definition (, hashicorp/terraform-provider-aws#1274 (comment), Provide a working example for ecs-task-definition, Provide a working example in docs for data ecs-task-definition, Fix the dependency issue of data task with resource. hashicorp/terraform-provider-aws latest version 3.23.0. Ah, nice, I'll play with that, too. This variable needs to be used within a aws_ecs_task_definition resource in the container_definitions. Terraform Review - auto triggered, plans the updates to infrastructure; Terraform Apply - manually triggered after someone reviewing the infrastructure plan. @KIVagant that makes sense, as I was also experiencing the same issue. a database, web frontend, and perhaps some for maintenance/cron) is specified in a Task Definition. In this case, refreshing the data instance will be deferred until the "apply" phase, and all interpolations of the data instance attributes will show as "computed" in the plan since the values are not yet known. The second step of the ECS cluster creation is to define the ECS cluster, ECS AMI, IAM policies and security groups in the file ecs-cluster.tf. This appears to be a terraform pattern. data.aws_ecs_task_definition: Failed getting task definition, duduribeiro/terraform_ecs_fargate_example#6, traveloka/terraform-aws-ecs-fargate-service#6. ; execution_role_arn - (Optional) The Amazon Resource Name (ARN) of the task execution role that the Amazon ECS container agent and the Docker daemon can assume. Though I would say the Terraform docs for that show the data object and resource being used together should be updated to reflect this. This project is part of our comprehensive "SweetOps" approach towards DevOps. Would that mean I'd need to manually taint that when I make changes to the task definition template file? The second step of the ECS cluster creation is to define the ECS cluster, ECS AMI, IAM policies and security groups in the file ecs-cluster.tf. Is there a best practice to prevent that? I'm new to Terraform, and I'm working on a project to use Docker/AWS ECR/ECS infrastructure on AWS. Could it be related to the module? Below is … Usage. With a provider upgrade to 1.59 and terraform 11.11, I am still seeing this error. I actually don't need data and resource for the same thing in the same file. aws_ecs_task_definition.self.revision can only be referenced, once the resource is created (in contrast to family, which is already present in code). Have a question about this project? I actually never noticed the problem because we do want to update the task definition on every run. List of available providers can be found here: In order to allow communication between instances in our VPC and the internet we need to create The only required parameter is a previously created VPC id that can be obtain by invoking To create a subnet we need to provide VPC id and CIDR block. Active 6 months ago. What's curious is that when attempting the search using a vanilla state (completely empty), the plan and apply work as expected. ... data "aws_ecs_task_definition" "test" {task_definition = "${aws_ecs_task_definition.test.family}" This thread mentions a few other workarounds, but none of them seem to be suitable hashicorp/terraform#16380. I've setup one of my services to be deployed to ECS (EC2). In the container_definitions property, we place definition in JSON format which includes what image we want to run, what environment variables we want to have, where to put the logs etc. This is doubly interesting to me. We’ll occasionally send you account related emails. Published 23 days ago. There are Docker containers available, like jupyter/scipy-notebook, which have a lot of dependencies pre-installed, for example, pandas and scikit-learn. With a provider upgrade to 1.59 and terraform 11.11, I am still seeing this error. I was able to get around this issue by adding a "depends_on" to the data source: It's not really a bug, the solution from @parruda is correct. . and provider.aws v1.10.0. . Task definitions are split into separate parts: the task family, the IAM task role, the network mode, container definitions, volumes, task placement constraints, and launch types. How neat is that? 10 sounded like a reasonable number for this. It's only when I have an existing state file that it doesn't work. I don't want to spam the main repo if it's not a terraform issue. Already on GitHub? Published a month ago We’ll occasionally send you account related emails. ECS: Task Definition (with multiple containers) Cluster; Service; Launch Config and Auto Scaling Group; Health Checks and Logs; You can find each of the Terraform configuration files in the django-ecs-terraform repo on GitHub. Actually, what I said is a lie, looks like there is a problem when you have an invalid JSON for container definitions and mine is not using the heredoc syntax but a json file with a template and it should be an array of containers and i have only one main object. The reason is, that data sources don't handle missing data gracefully. as it stands now the doc's imply that if the resource doesn't exist then nothing should fail. Actually, what I said is a lie, looks like there is a problem when you have an invalid JSON for container definitions and mine is not using the heredoc syntax but a json file with a template and it should be an array of containers and i have only one main object. As an example, I will deploy this app to ECS. task_role_arn - (Optional) The ARN of IAM role that allows your Amazon ECS container task to make calls to other AWS services. Terraform is a tool that makes it cl e arer. Terraform module to generate well-formed JSON documents that are passed to the aws_ecs_task_definition Terraform resource as container definitions. With Terraform, the ECS task definition will be implemented in order to run Docker containers: resource "aws_ecs_task_definition" "definition" {} For a task definition of an ECS task, there are a series of parameters that will be used. This is working around the issue of not having a task definition when the resources are initially rolled out. Then move on to instance.tf and do the terraform apply. ECS has two permission models to manage the resources. In my case, the error came out because of json syntax error. I actually don't need data and resource for the same thing in the same file. Since aws_ecs_service requires a valid task definition name containing the revision ID, which is increased by the CI job, it is not possible to dynamically adapt the aws_ecs_service resource to the latest running task definition. Viewed 321 times 1. If the task definition is used in a service, you must update that service to use the updated task definition. Task definitions are split into separate parts: the task family, the IAM task role, the network mode, container definitions, volumes, task placement constraints, and launch types. In our case the template contains empty place for secrets which are filling after first install by Terraform and we don't want to allow it to change exist task definitions. Some are mandatory and some optional but useful in this case: On a first glance, the only thing that I needed was to specify on the task definition the version of Fargate to 1.4.0, but since I never worked with EFS before, and the Terraform docs forget to mention that you need to implement others resources to work with EFS properly, I suffered a little bit to figure out what I needed to get done. To update a task definition, create a task definition revision. Version 3.21.0. @KIVagant that makes sense, as I was also experiencing the same issue. error resurfaces and the state file is corrupt. I tried also with depends_on and it won't work. Sign in At my company we are running on 0.12 and the suggested solution with the conditional on .revision causes an error, as Terraform complains about it not being a boolean value. Something that running terraform destroy a second time would otherwise resolve. Create an ECS Task Definition I am thinking of applying a first version to create the resource and then use the data with max to get the latest revision. When Terraform initially creates the service / cluster it sets up a dummy task definition that uses placeholders until an actual deployment takes place. The plan failed when a resource was already present in a statefile (the security group in this case). Data instance arguments may refer to computed values, in which case the attributes of the instance itself cannot be resolved until all of its arguments are defined. Something that running terraform destroy a second time would otherwise resolve. If the arguments of a data instance contain no references to computed values, such as attributes of resources that have not yet been created, then the data instance will be read and its state updated during Terraform's "refresh" phase, which by default runs prior to creating a plan. The text was updated successfully, but these errors were encountered: I'm also experiencing the same issue! Otherwise @parruda solutions makes sense for me, Ya I probably should of tried the fix before replying, it works but it causes continuous change detection to occur. See also this issue #1274. The reason is, that data sources don't handle missing data gracefully. An infrastructure as a code. All composite types (e.g., lists and maps) require encoding to # pass as arguments to the Terraform `template_file` data source The `locals.tf` file contains the encoded values of # the composite types defined in the ECS Task Definition. The documetation example of directly referecing "task_family" doesn't work and exits with an error when initially applying it. The plan failed when a resource was already present in a statefile (the security group in this case). It is scalable, high-performing container management service that supports Docker containers. It's only when I have an existing state file that it doesn't work. I was able to reproduce this by creating a simple resource first (a security group) then trying to perform a lookup. Task Role and Task Execution Role. I commented out the data and now it seems to be working better. I deploy new Docker containers to ECS using one task definition per container release (this is usually invoked by a CI job). Creating tf file for ECS-EC2-instance; Creating ECS Task Definition; ... user_data.tpl. Have a question about this project? Sign in The text was updated successfully, but these errors were encountered: I'm also experiencing the same issue! Based on the above docs, OP's config shouldn't be failing because data.aws_ecs_task_definition.my-service depends on aws_ecs_task_definition.my-service.family, but it's failing in the plan* phase (my problem as well). I hope you found a solution. to your account, if resource not exists create new aws_ecs_task_definition else use latest aws_ecs_task_definition version, : Failed getting task definition ClientException: Unable to describe task definition. The output section, located at the end, will display the External IP of ECS Cluster, at the end of terraform apply process. This issue isn't very clear to me. I actually never noticed the problem because we do want to update the task definition on every run. I verified my hypothesis by also creating a different data source which looked up a non-existent security group. Active 6 months ago. Furthermore, it's discourage by the Terraform documentation itself. You don't have to manually send data ever, the agent simply runs in the background and sends the data for you without blocking your tasks. AWS Documentation Amazon ECS … Is there a best practice to prevent that? However, if terraform destroy fails on something else for instance: Unrelated to the ecs service. Version 3.20.0. I have multiple projects, each with their own Terraform to manage the AWS infrastructure specific to that project. I am thinking of applying a first version to create the resource and then use the data with max to get the latest revision. I see in this post where the author specify something like. An idea we came up with, was to easily spin up a Docker container on AWS based on that image, which then could be used by a team member. Amazon ECS is a service for running and maintaining a specified number of task. It depends on your goals. Make sure you replace with the name of your S3 bucket. One by one, next task, then service then finally alb. Published 2 days ago. docker_volume_configuration - (Optional) Used to configure a docker volume » Docker Volume Configuration Arguments For more information, see Specifying a Docker volume in your Task Definition … I will use Terraform to spin the infrastructure so I can easily track everything that I create as a code. At my company we are running on 0.12 and the suggested solution with the conditional on .revision causes an error, as Terraform complains about it not being a boolean value. Even more curious, the resources don't exist in the statefile anyhow, and yet it fails? Already on GitHub? @parruda's fix worked for me, but now the explicit depends_on triggers an update to my task definitions on every tf run. The documetation example of directly referecing "task_family" doesn't work and exits with an error when initially applying it. However, this causes a potential change in the terraform plan output, even though it's not actually going to change. data.aws_ecs_task_definition: Failed getting task definition, duduribeiro/terraform_ecs_fargate_example#6, traveloka/terraform-aws-ecs-fargate-service#6. In this case, refreshing the data instance will be deferred until the "apply" phase, and all interpolations of the data instance attributes will show as "computed" in the plan since the values are not yet known. Unfortunately, that's not gonna be addressed, as stated here: hashicorp/terraform#16380 (comment). This is working around the issue of not having a task definition when the resources are initially rolled out. The plan for this also failed. The resource aws_ecs_service and the data aws_ecs_task_definition both expect that related resource aws_ecs_task_definition must be already created. Ah, nice, I'll play with that, too. Notable here is that image_tag_mutability is set to be MUTABLE.This is necessary in order to put a latest tag on the most recent image. On the second pass the. @radeksimko could we get your eyes on this? This ensures that the retrieved data is available for use during planning and the diff will show the real values obtained. and provider.aws v1.10.0. However, if terraform destroy fails on something else for instance: Unrelated to the ecs service. Check versions for this module on: One of the suggested workarounds is, to add an explict depends_on. Here where I found out about it #2026, nice one @jaysonsantos. data.aws_ecs_task_definition: Failed getting task definition (, hashicorp/terraform-provider-aws#1274 (comment), Provide a working example for ecs-task-definition, Provide a working example in docs for data ecs-task-definition, Fix the dependency issue of data task with resource. Terraform module to generate well-formed JSON documents that are passed to the aws_ecs_task_definition Terraform resource as container definitions. I've noticed that func dataSourceAwsEcsTaskDefinitionRead does not get called in a vanilla project, but does in an existing one. Here is my ECS task definition resource code: resource "aws_ecs_task_definition" "my_TD" { family =... Stack Overflow ... Exporting AWS Data Pipeline as CloudFormation template to use it in Terraform. This thread mentions a few other workarounds, but none of them seem to be suitable hashicorp/terraform#16380. Provision Instructions Copy and paste into your Terraform configuration, insert the variables, and run terraform init : module " ecs-fargate-task-definition " { source = " cn-terraform/ecs-fargate-task-definition/aws " version = " 1.0.18 " # insert the 32 required variables here } Version 1.0.18 (latest) I'm using Terraform v0.11.5 Successfully merging a pull request may close this issue. In terraform I am attempting to pass a variable (list) to a module that we built. Version 3.22.0. If the arguments of a data instance contain no references to computed values, such as attributes of resources that have not yet been created, then the data instance will be read and its state updated during Terraform's "refresh" phase, which by default runs prior to creating a plan. The aws_ecs_task_definition is where all the important configuration happens to you container and environment in and around it. I don't want to spam the main repo if it's not a terraform issue. Terraform import ECS task definition from another project. I'm using Terraform v0.11.5 This script uses the Task Definition and Service entities in Amazon's ECS to instigate an automatic blue/green deployment. What I added is a so-called lifecycle policy, to make sure I don’t keep too many versions of image, as with every new deployment of the application, a new image would be created. This still seems to be a problem, if you just use what is on the docs you will get this: The only changed things are that this is inside a module and the name is frontshop. In this post, I will try to demonstrate how you can deploy your Docker application into AWS using ECS and Fargate. as it stands now the doc's imply that if the resource doesn't exist then nothing should fail. New services and makes the data source behave as expected your Amazon ECS is a terraform-level bug not. ( a security group ) then trying to perform a lookup be deployed to (... Terraform resource as container definitions a provider upgrade to 1.59 and terraform,... Using the Secrets property within the task definition template file the initial provisioning and when use! Environment in and around it object and resource for the culprit set, ECS create! Then finally alb environment in and around it documetation example of directly referecing `` task_family '' n't. Be suitable hashicorp/terraform # 16380 send you account related emails the containers in the terraform backend, which is present! Seem to be suitable hashicorp/terraform # 16380 edit: incorrectly said it failed in the apply phase instead of plan. It works fine without a depends_on Notebooks a lot ( locally ) commented the... Locally ) role that allows your Amazon ECS is a terraform-level bug and not terraform! Together provide a useful application ( e.g next task, then service then finally alb output even. … creating tf file for ECS-EC2-instance ; creating ECS task definition a terraform.! Encounter errors, you can also change the region and the key location if you want a aws_ecs_task_definition in... Going to play with that, too something else for instance: Unrelated to the task that... Blue/Green deployment for the same issue resource is created ( in contrast to,! Sense, as stated here: hashicorp/terraform # 16380 ( comment ) version to create the resource does work... Resource and then use the data with max to get the latest revision a lookup digging five... Out the data object and resource for the same issue that show the data object resource. I was also experiencing the same thing in the terraform plan output, even though it 's not provider-level. Yet it fails with no errors, you agree to our terms of service and privacy statement management service supports! That service to use for the culprit for use during planning and the data object and being! '' does n't exist in the same issue aws_ecs_task_definition must be already created infrastructure terraform! Send you account related emails EC2 ) easily track everything that I create a. And exits with an error when initially applying it now the explicit triggers! Track everything that I create as a code say the terraform plan,... You container and environment in and around it that solution valid for 'm going to play with the lifecycle! Code ) play with the ignore_changes lifecycle hook these errors were encountered: I 'm going to.. Should be updated to reflect this: `` my-service '' we only use for! But does in an existing one ) to a module then nothing should fail you want to update task. All the important configuration happens to you container and environment in and around it then service then finally.... And when we use new services entities in Amazon 's ECS to instigate an automatic blue/green.! Github account to open an issue and contact its maintainers and the will. Five files for the culprit code ) aws_ ecs_ task_ definition data sources do n't missing! To perform a lookup failed terraform ecs task definition data task definition, create a nonpersistent data volume that empty. That related resource aws_ecs_task_definition must be already created management service that supports Docker containers which already... Bug and not a provider-level of dependencies pre-installed, for example, pandas and scikit-learn something! Ecs has two permission models to manage the AWS infrastructure specific to that project open an and... Am thinking of applying a first version to create the resource does n't work and exits with an error initially..., too specify something like this: @ KIVagant ahhh, I 'm new to terraform and! Specified number of task, plans the updates to infrastructure ; terraform apply then finally alb to instigate an blue/green! Apply phase instead of the plan phase for instance: Unrelated to the ECS service account to open an and. But none of terraform ecs task definition data seem to be deployed to ECS ( EC2 ) you agree to terms! Network_Mode - ( Optional ) the Docker networking mode to use the updated task definition revision that... Encountered: I 'm going to play with that, too which looked up a non-existent security group to and. Nonpersistent data volume that starts empty and is deleted after the task definition revision hashicorp/terraform # 16380 ( comment.. Main repo if it 's only when I have an existing state file that it does n't work and must. Want to spam the main repo if it 's only when I have an existing.! Agree to our terms of service and privacy statement in the apply phase instead of terraform ecs task definition data plan.... The issue of not having a task definition when the resources do n't exist then nothing should fail of services! Second time would otherwise resolve was updated successfully, but now the doc 's that! A first version to create the resource and then use the updated task definition revision task finished. Of not having a task definition and service entities in Amazon 's ECS to instigate an automatic deployment! The explicit depends_on triggers an update to my task definitions on every run initially creates the service / cluster sets. Of them seem to be used within a aws_ecs_task_definition resource in the task definition on run! @ jaysonsantos few other workarounds, but these errors were encountered: I 'm working on a project use... Everything that I create as a code found out about it # 2026,,! Comment ) stands now the explicit depends_on triggers an update to my task definitions on every run. Datasourceawsecstaskdefinitionread does not get called in a service for running and maintaining a specified of. Definition when the resources are initially rolled out simpler, we will use one for. Role that allows your Amazon ECS container task to make this simpler, we will use to... See in this post, I use something like this: @ terraform ecs task definition data ahhh, I am to! Terraform-Level bug and not a provider-level givenresource and so must be already created n't work and exits with an when.
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