feat: add basic support for nix flakes

.gitignore

@@ -45,3 +45,6 @@ sdks/python/client/dist/*
 manifests/install.yaml
 manifests/namespace-install.yaml
 /logs
+node_modules 
+result
+.devenv

README.md

@@ -45,6 +45,19 @@ Argo is a [Cloud Native Computing Foundation (CNCF)](https://cncf.io/) hosted pr
 
 ![Screenshot](docs/assets/screenshot.png)
 
+## Try Argo using Nix
+Nix is a package manager / build tool which focusses on reproducible build environments.
+Argo Workflows has some basic support for Nix which is enough to get Argo Workflows up and running with minimal effort. 
+Here are the steps to follow: 
+  1. Modify the hosts file according to [this](https://argoproj.github.io/argo-workflows/running-locally/), don't worry about the other instructions. 
+  2. Setup a k8s cluster, k3d is the recommended solution here. 
+  3. Install [Nix](https://nixos.org/download.html).
+  4. Make a directory in the argo workflows folder called ".devenv".
+  5. Run "nix develop --extra-experimental-features nix-command --extra-experimental-features flakes" (you can add this as a default in your nix.conf file).
+  6. Run "devenv up". 
+
+As I said, this is still fairly barebones at the moment, any feature in the Makefile not mentioned here is excluded at the moment. 
+In practice this means only a "make start UI=true" equivalent is supported at the moment, there are no LDFlags set in the build, so the UI will show something similar to "0.0.0-unknown"
 ## Documentation
 
 [View the docs](https://argoproj.github.io/argo-workflows/)

conf.nix

@@ -0,0 +1,50 @@
+rec {
+  staticFiles = true;
+  version = "latest";
+  env = {
+    DEFAULT_REQUEUE_TIME = "1s";
+    SECURE = "false";
+    ALWAYS_OFFLOAD_NODE_STATUS = "false";
+    LOG_LEVEL = "debug";
+    UPPERIO_DB_DEBUG = "0";
+    IMAGE_NAMESPACE = "quay.io/pipekitdev";
+    VERSION = "${version}";
+    AUTH_MODE = "hybrid";
+    NAMESPACED = "true";
+    KUBE_NAMESPACE = "argo";
+    NAMESPACE = "${env.KUBE_NAMESPACE}";
+    MANAGED_NAMESPACE = "${env.KUBE_NAMESPACE}"; # same as kubeNamespace
+    CTRL = "true";
+    LOGS = "true"; # same as CTRL - not acted upon
+    UI = "true"; # same as CTRL
+    API = "true"; # same as CTRL
+    PLUGINS = "false";
+  };
+  controller = {
+    env = {
+      CTRL = "${env.CTRL}";
+      ARGO_EXECUTOR_PLUGINS = "${env.PLUGINS}";
+      ARGO_REMOVE_PVC_PROTECTION_FINALIZER = "true";
+      ARGO_PROGRESS_PATCH_TICK_DURATION = "7s";
+      DEFAULT_REQUEUE_TIME = "${env.DEFAULT_REQUEUE_TIME}";
+      LEADER_ELECTION_IDENTITY = "local";
+      ALWAYS_OFFLOAD_NODE_STATUS = "${env.ALWAYS_OFFLOAD_NODE_STATUS}";
+      OFFLOAD_NODE_STATUS_TTL = "30s";
+      WORKFLOW_GC_PERIOD = "30s";
+      UPPERIO_DB_DEBUG = "${env.UPPERIO_DB_DEBUG}";
+      ARCHIVED_WORKFLOW_GC_PERIOD = "30s";
+    };
+    args = "--executor-image ${env.IMAGE_NAMESPACE}/argoexec:${env.VERSION} --namespaced=${env.NAMESPACED} --managed-namespace=${env.MANAGED_NAMESPACE} --loglevel ${env.LOG_LEVEL}";
+  };
+
+  argoServer = {
+    env = {
+      UPPERIO_DB_DEBUG = "${env.UPPERIO_DB_DEBUG}";
+    };
+    args = "--loglevel ${env.LOG_LEVEL} server --namespaced=${env.NAMESPACED} --auth-mode ${env.AUTH_MODE} --secure=${env.SECURE} --x-frame-options=SAMEORIGIN";
+  };
+  ui = {
+    env = { };
+    args = "--cwd ui start";
+  };
+}

examples/validator.go

@@ -4,8 +4,8 @@ import (
 	"fmt"
 	"io/ioutil"
 	"os"
-	"strings"
 	"path/filepath"
+	"strings"
 
 	"github.com/xeipuuv/gojsonschema"
 	"sigs.k8s.io/yaml"
@@ -75,7 +75,7 @@ func ValidateArgoYamlRecursively(fromPath string, skipFileNames []string) (map[s
 					errorDescriptions = append(errorDescriptions, fmt.Sprintf("%s in %s", err.Description(), err.Context().String()))
 				}
 			}
-			
+
 			if !(incorrectError && len(errorDescriptions) == 1) {
 				failed[path] = errorDescriptions
 			}