v2.3.0

Quick Start

kubectl create namespace argo
kubectl apply -n argo -f https://raw.githubusercontent.com/argoproj/argo/v2.3.0/manifests/install.yaml

Changelog since v2.2

Notes about upgrading from v2.2

• Artifact repository secrets are passed to the wait sidecar using volumeMounts instead of the
  previous behavior of performing K8s API calls performed by the executor. This is much more secure
  since it removes privileges of the workflow pod to no longer require secret access. However, as a
  consequence, workflow pods which reference a secret that does not exist, will now indefinitely
  stay in a Pending state, as opposed to the previous behavior of failing during runtime.

Deprecation Notice

The workflow-controller-configmap introduces a new config field, executor, which is a container
spec and provides controls over the executor sidecar container (i.e. init/wait). The fields
executorImage, executorResources, and executorImagePullPolicy are deprecated and will be
removed in a future release.

New Features:

• Support for PNS (Process Namespace Sharing) executor (#1214)
• Support for K8s API based Executor (#1010) (@dtaniwaki)
• Adds limited support for Kubelet/K8s API artifact collection by mirroring volume mounts to wait sidecar
• Support HDFS Artifact (#1159) (@dtaniwaki)
• System level workflow parallelism limits & priorities (#1065)
• Support larger workflows through node status compression (#1264)
• Support nested steps workflow parallelism (#1046) (@WeiTang114)
• Add feature to continue workflow on failed/error steps/tasks (#1205) (@schrodit)
• Parameter and Argument names should support snake case (#1048) (@bbc88ks)
• Add support for ppc64le and s390x (#1102) (@chenzhiwei)
• Install mime-support in argoexec to set proper mime types for S3 artifacts
• Allow owner reference to be set in submit util (#1120) (@nareshku)
• add support for hostNetwork & dnsPolicy config (#1161) (@Dreamheart)
• Add schedulerName to workflow and template spec (#1184) (@houz42)
• Executor can access the k8s apiserver with a out-of-cluster config file (@houz42)
• Proxy Priority and PriorityClassName to pods (#1179) (@dtaniwaki)
• Add the mergeStrategy option to resource patching (#1269) (@ian-howell)
• Add workflow labels and annotations global vars (#1280) (@discordianfish)
• Support for optional input/output artifacts (#1277)
• Add dns config support (#1301) (@xianlubird)
• Added support for artifact path references (#1300) (@Ark-kun)
• Add support for init containers (#1183) (@dtaniwaki)
• Secrets should be passed to pods using volumes instead of API calls (#1302)
• Azure AKS authentication issues #1079 (@gerardaus)
• Support parameter substitution in the volumes attribute (#1238)

Refactoring & Improvements:

• Update dependencies to K8s v1.12 and client-go 9.0
• Add namespace explicitly to pod metadata (#1059) (@dvavili)
• Raise not implemented error when artifact saving is unsupported (#1062) (@dtaniwaki)
• Retry logic to s3 load and save function (#1082) (@kshamajain99)
• Remove docker_lib mount volume which is not needed anymore (#1115) (@ywskycn)
• Documentation improvements and fixes (@protochron, @jmcarp, @locona, @kivio, @fischerjulian, @annawinkler, @jdfalko, @groodt, @migggy, @nstott, @adrienjt)
• Validate ArchiveLocation artifacts (#1167) (@dtaniwaki)
• Git cloning via SSH was not verifying host public key (#1261)
• Speed up podReconciliation using parallel goroutine (#1286) (@xianlubird)

Bug Fixes

• Initialize child node before marking phase. Fixes panic on invalid When (#1075) (@jmcarp)
• Submodules are dirty after checkout -- need to update (#1052) (@andreimc)
• Fix output artifact and parameter conflict (#1125) (@Ark-kun)
• Remove container wait timeout from 'argo logs --follow' (#1142)
• Fix panic in ttl controller (#1143)
• Kill daemoned step if workflow consist of single daemoned step (#1144)
• Fix global artifact overwriting in nested workflow (#1086) (@WeiTang114)
• Fix issue where steps with exhausted retires would not complete (#1148)
• Fix metadata for DAG with loops (#1149)
• Replace exponential retry with poll (#1166) (@kzadorozhny)
• Dockerfile: argoexec base image correction (#1213) (@elikatsis)
• Set executor image pull policy for resource template (#1174) (@dtaniwaki)
• fix dag retries (#1221) (@houz42)
• Remove extra quotes around output parameter value (#1232) (@elikatsis)
• Include stderr when retrieving docker logs (#1225) (@shahin)
• Fix the Prometheus address references (#1237) (@spacez320)
• Kubernetes Resource action: patch is not supported (#1245)
• Fake outputs don't notify and task completes successfully (#1247)
• Reduce redundancy pod label action (#1271) (@xianlubird)
• Fix bug with DockerExecutor's CopyFile (#1275)
• Fix for Resource creation where template has same parameter templating (#1283)
• Fixes an issue where daemon steps were not getting terminated properly
• argo submit --wait and argo wait quits while workflow is running (#1347)
• Fix input artifacts with multiple ssh keys (#1338) (@almariah)
• Add when test for character that included / (@hideto0710)
• Fix parameter substitution bug (#1345) (@elikatsis)
• Fix missing template local volumes, Handle volumes only used in init containers (#1342)
• Export the methods of KubernetesClientInterface (#1294)