Changelog

What’s New in Release 2.19.02

Fixes

• In the LDAP login flow we now use an anonymous form to POST LDAP auth state, rather than sending it as a GET parameter. Previously, when a user authenticated using LDAP, their username and password were sent in plaintext as part of a query parameter in a GET request. As requests are over HTTPS, this left usernames and passwords in request logs, etc. This issue is now fixed.

• Optimizely and Zendesk are now removed from Server release images.

• Fixed an issue in which setting CIRCLE_ADMIN_SERVER_HTTP_THREADS or CIRCLE_PUBLIC_FACING_SERVER_HTTP_THREADS too high would prevent the frontend container from starting.

• Due to changes in the GitHub API we have removed the use of ?client_id=x&client_secret=y for GitHub, and GHE versions 2.17 and later.

• Fixed an issue that was causing intermittent failures to spin up VMs with DLC in use.

• Fixed an issue that was preventing the customization of proxy settings for Docker containers. See the Nomad Client Proxy and Service Configuration Overrides guides for more infomation.

• Fixed a bug that was preventing job steps for non-failing builds being logged when proxy settings were used for the job container.

• Removed legacy TLS versions 1.0 and 1.1, in addition, enabled 1.2 and 1.3 TLS, and specified the following ciphersuites
  • ECDHE-RSA-AES256-GCM-SHA512:DHE-RSA-AES256-GCM-SHA512:ECDHE-RSA-AES256-GCM-SHA384:DHE-RSA-AES256-GCM-SHA384:ECDHE-RSA-AES256-SHA384
• Fixed a statsd configuration issue that meant some services were not emitting Telegraf metrics.

Known Issues

• If any changes have been made to your networking configuration from the default, you should run the following steps to ensure you can use SSH to inspect your builds:
  • For customers using AWS, make sure that you have the latest Launch Configuration configured for Nomad clients, and that exiting Nomad clients were spun up using the Launch Configuration.
  • On each Nomad Client machine, create /etc/circleci/public-ipv4
  • This file should contain the public (if aplicable) or private IP of the nomad client
• Classic Load Balancer is no longer available from this version due to the ciphersuite changes listed above. CircleCI no longer accepts requests from Classic Load Balancer, so you should move to Network Load Balancer (NLB) or Application Load Balancer (ALB).

What’s New in Release 2.18.03

Features

Following our release of Windows support on the hosted offering of CircleCI, running VM-based jobs in Windows environments is now supported on CircleCI Server instances running in AWS.

The version of Windows currently supported is Windows Server 2019. Check out the Customizing VM Service Images doc for the details of how to build your own custom Windows Server 2019 image, and then follow the Server examples in the Getting Started with Windows doc for instructions on how to set up a Windows job on your CircleCI Server installation.

Deprecation

• Server-Mongo-Upgrader will be removed in Server 2.19.0. Only effects customers running < 2.15.0.

We have released patches to our AMIs and other infrastructure to address CVE-2016-8655. We recommend all CircleCI Enterprise installations follow the instructions below to update both their Services box and their Builder fleet.

If you have any questions or difficulties please contact enterprise-support@circleci.com.

Update the Services box:

1. As always, ensure your data is backed up.
2. Shut down CircleCI in the Replicated console (or via the CLI).
3. Update the kernel using the provided install_kernel_master function below.
4. Restart the machine.

#!/bin/bash
function install_kernel_master() {
    echo '>>> Installing Kernel'
    apt-get update
    apt-get install linux-image-3.13.0-105-generic linux-headers-3.13.0-105-generic linux-image-extra-3.13.0-105-generic
    apt-cache policy linux-image-3.13.0-105-generic linux-headers-3.13.0-105-generic linux-image-extra-3.13.0-105-generic
}

Update the Builder fleet:

For the builder fleet, update the Launch Configuration to use the updated AMI from the list below:

• ap-northeast-1 = “ami-07f09d60”
• ap-northeast-2 = “ami-90588ffe”
• ap-southeast-1 = “ami-4f54f82c”
• ap-southeast-2 = “ami-040c3467”
• eu-central-1 = “ami-3465a35b”
• eu-west-1 = “ami-d70421a4”
• sa-east-1 = “ami-2e6bf242”
• us-east-1 = “ami-e68f89f1”
• us-west-1 = “ami-901c4af0”
• us-west-2 = “ami-0c57fc6c”

If you are using our Terraform scripts, you can download the new script https://github.com/circleci/enterprise-setup/blob/master/circleci.tf and run terraform apply. We’ve already updated the scripts to include the new AMIs, so terraform should launch new builders automatically with the patched version, and cycle your fleet.

If you are using a non-AWS environment, use the same method to patch your builders you used to patch the Services box.

If any of the above does not apply to your environment, or you encounter issues with your upgrades please contact: enterprise-support@circleci.com.

We have released patches to our AMIs and other infrastructure to address CVE-2016-5195. We recommend all CircleCI Enterprise installations follow the instructions below to update both their Services box and their Builder fleet.

If you have any questions or difficulties please contact enterprise-support@circleci.com.

Update the Services box:

1. As always, ensure your data is backed up.
2. Shut down CircleCI in the Replicated console (or via the CLI).
3. Update the kernel using the provided install_kernel_master function below.
4. Restart the machine.

#!/bin/bash
function install_kernel_master() {
    echo '>>> Installing Kernel'
    apt-get update
    apt-get install linux-image-3.13.0-100-generic linux-headers-3.13.0-100-generic linux-image-extra-3.13.0-100-generic
    apt-cache policy linux-image-3.13.0-100-generic linux-headers-3.13.0-100-generic linux-image-extra-3.13.0-100-generic
}

Update the Builder fleet:

For the builder fleet, update the Launch Configuration to use the updated AMI from the list below:

• ap-northeast-1 = “ami-59389e38”
• ap-northeast-2 = “ami-a2e236cc”
• ap-southeast-1 = “ami-a80fa9cb”
• ap-southeast-2 = “ami-53241930”
• eu-central-1 = “ami-5a59a035”
• eu-west-1 = “ami-e0c78993”
• sa-east-1 = “ami-3832af54”
• us-east-1 = “ami-d0396bc7”
• us-west-1 = “ami-76226916”
• us-west-2 = “ami-938420f3”

NOTE: The following AMIs are not maintained by CircleCI, but contain a patched version of stock ubuntu.

• gov-west-1 = “ami-34df6755”
• cn-north-1 = “ami-92f622ff”

If you are using our Terraform scripts, you can download the new script https://github.com/circleci/enterprise-setup/blob/master/circleci.tf and run terraform apply. We’ve already updated the scripts to include the new AMIs, so terraform should launch new builders automatically with the patched version, and cycle your fleet.

If you are using a non-AWS environment, use the same method to patch your builders you used to patch the Services box.

If any of the above does not apply to your environment, or you encounter issues with your upgrades please contact: enterprise-support@circleci.com.

New Feature: The maximum size of files that you can upload for caching during builds has been fixed to 5G. The size is now bumped 20G by default on CircleCI Enterprise and customers can also override the default value to even larger size.

To override the default value, you need to run the following in a REPL of Service Box.

(settings/set {:max-file-cache-bytes <max-size-by-bytes>})

To unset the overridden value and use default, run the following.

(settings/unset! [:max-file-cache-bytes])

This release fixes a bug in the URL structure used to serve build artifacts.

The artifact URL format was recently changed to handle security concerns related to CircleCI’s hosted offering. The security concerns do not affect CircleCI Enterprise customers, but the change caused issues fetching build artifacts in CircleCI Enterprise installations. This release reverts the CircleCI Enterprise artifact format and resolves the issue.

Please make sure that you are using the latest provision-builder.sh and init-builder-0.2.sh before you upgrade to this release:

https://s3.amazonaws.com/circleci-enterprise/provision-builder.sh

https://s3.amazonaws.com/circleci-enterprise/init-builder-0.2.sh

As part of this release we’re changing the behavior of artifacts to only serve an allowed set of content-types. This means we won’t serve .html files as text/html. This is a security risk on CircleCI Enterprise since artifacts are served on the same domain as the rest of the site – as a result, any user or malicious code used as part of your build can push a specially-crafted artifact and gain control of another user’s account.

If this is an issue, you can override this behavior by setting “Serve artifacts with unsafe content-types” in the admin console. We don’t recommend this, but we’re providing it for backwards compatibility.

This release also includes some changes to container networking. Containers now each use a /24 in the subnet 172.16.1.0/16 by default.

If this conflicts with your private network, or if you were editing lxc-net manually in order to fix a prior conflict, you can now use CIRCLE_CONTAINERS_SUBNET and CIRCLE_CONTAINERS_SUBNET_NETMASK_LENGTH on the builders to configure those.