chore!: remove duplicate Server env vars, plus --basehref -> --base-href

cmd/argo/commands/server.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/tls"
 	"fmt"
-	"os"
 	"reflect"
 	"strings"
 	"time"
@@ -191,18 +190,8 @@ See %s`, help.ArgoServer),
 		},
 	}
 
-	defaultBaseHRef := os.Getenv("BASE_HREF")
-	if defaultBaseHRef == "" {
-		defaultBaseHRef = "/"
-	}
-
-	defaultAllowedLinkProtocol := []string{"http", "https"}
-	if protocol := os.Getenv("ALLOWED_LINK_PROTOCOL"); protocol != "" {
-		defaultAllowedLinkProtocol = strings.Split(protocol, ",")
-	}
-
 	command.Flags().IntVarP(&port, "port", "p", 2746, "Port to listen on")
-	command.Flags().StringVar(&baseHRef, "basehref", defaultBaseHRef, "Value for base href in index.html. Used if the server is running behind reverse proxy under subpath different from /. Defaults to the environment variable BASE_HREF.")
+	command.Flags().StringVar(&baseHRef, "basehref", "/", "Value for base href in index.html. Used if the server is running behind reverse proxy under subpath different from /.")
 	// "-e" for encrypt, like zip
 	command.Flags().BoolVarP(&secure, "secure", "e", true, "Whether or not we should listen on TLS.")
 	command.Flags().StringVar(&tlsCertificateSecretName, "tls-certificate-secret-name", "", "The name of a Kubernetes secret that contains the server certificates")
@@ -218,7 +207,7 @@ See %s`, help.ArgoServer),
 	command.Flags().StringVar(&frameOptions, "x-frame-options", "DENY", "Set X-Frame-Options header in HTTP responses.")
 	command.Flags().StringVar(&accessControlAllowOrigin, "access-control-allow-origin", "", "Set Access-Control-Allow-Origin header in HTTP responses.")
 	command.Flags().Uint64Var(&apiRateLimit, "api-rate-limit", 1000, "Set limit per IP for api ratelimiter")
-	command.Flags().StringArrayVar(&allowedLinkProtocol, "allowed-link-protocol", defaultAllowedLinkProtocol, "Allowed protocols for links feature. Defaults to the environment variable ALLOWED_LINK_PROTOCOL: http,https")
+	command.Flags().StringArrayVar(&allowedLinkProtocol, "allowed-link-protocol", []string{"http", "https"}, "Allowed protocols for links feature.")
 	command.Flags().StringVar(&logFormat, "log-format", "text", "The formatter to use for logs. One of: text|json")
 	command.Flags().Float32Var(&kubeAPIQPS, "kube-api-qps", 20.0, "QPS to use while talking with kube-apiserver.")
 	command.Flags().IntVar(&kubeAPIBurst, "kube-api-burst", 30, "Burst to use while talking with kube-apiserver.")

docs/argo-server.md

@@ -48,7 +48,7 @@ See [managed namespace](managed-namespace.md).
 ### Base HREF
 
 If the server is running behind reverse proxy with a sub-path different from `/` (for example,
-`/argo`), you can set an alternative sub-path with the `--basehref` flag or the `BASE_HREF`
+`/argo`), you can set an alternative sub-path with the `--basehref` flag or the `ARGO_BASE_HREF`
 environment variable.
 
 You probably now should [read how to set-up an ingress](#ingress)

docs/cli/argo_server.md

@@ -17,10 +17,10 @@ See https://argo-workflows.readthedocs.io/en/latest/argo-server/
 
 ```
       --access-control-allow-origin string   Set Access-Control-Allow-Origin header in HTTP responses.
-      --allowed-link-protocol stringArray    Allowed protocols for links feature. Defaults to the environment variable ALLOWED_LINK_PROTOCOL: http,https (default [http,https])
+      --allowed-link-protocol stringArray    Allowed protocols for links feature. (default [http,https])
       --api-rate-limit uint                  Set limit per IP for api ratelimiter (default 1000)
       --auth-mode stringArray                API server authentication mode. Any 1 or more length permutation of: client,server,sso (default [client])
-      --basehref string                      Value for base href in index.html. Used if the server is running behind reverse proxy under subpath different from /. Defaults to the environment variable BASE_HREF. (default "/")
+      --basehref string                      Value for base href in index.html. Used if the server is running behind reverse proxy under subpath different from /. (default "/")
   -b, --browser                              enable automatic launching of the browser [local mode]
       --configmap string                     Name of K8s configmap to retrieve workflow controller configuration (default "workflow-controller-configmap")
       --event-async-dispatch                 dispatch event async

docs/environment-variables.md

@@ -123,11 +123,9 @@ data:
 
 | Name                                       | Type     | Default | Description                                                                                                             |
 |--------------------------------------------|----------|---------|-------------------------------------------------------------------------------------------------------------------------|
-| `ALLOWED_LINK_PROTOCOL`                    | `string` | `http,https` | List of comma separated protocols allowed for the [Links feature](links.md)
 | `ARGO_ARTIFACT_SERVER`                     | `bool`   | `true`  | Enable [Workflow Archive](workflow-archive.md) endpoints
 | `ARGO_PPROF`                               | `bool`   | `false` | Enable [`pprof`](https://go.dev/blog/pprof) endpoints
 | `ARGO_SERVER_METRICS_AUTH`                 | `bool`   | `true`  | Enable auth on the `/metrics` endpoint
-| `BASE_HREF`                                | `string` | `/`     | [Base HREF](argo-server.md#base-href) of the Server
 | `DISABLE_VALUE_LIST_RETRIEVAL_KEY_PATTERN` | `string` | `""`    | Disable the retrieval of the list of label values for keys based on this regular expression.                            |
 | `FIRST_TIME_USER_MODAL`                    | `bool`   | `true`  | Show this modal.                                                                                                        |
 | `FEEDBACK_MODAL`                           | `bool`   | `true`  | Show this modal.                                                                                                        |

docs/upgrading.md

@@ -3,6 +3,12 @@
 Breaking changes  typically (sometimes we don't realise they are breaking) have "!" in the commit message, as per
 the [conventional commits](https://www.conventionalcommits.org/en/v1.0.0/#summary).
 
+## Upgrading to v3.6
+
+### Removed redundant Server environment variables
+
+`ALLOWED_LINK_PROTOCOL` and `BASE_HREF` have been removed as redundant, use `ARGO_ALLOWED_LINK_PROTOCOL` and `ARGO_BASE_HREF` instead.
+
 ## Upgrading to v3.5
 
 There are no known breaking changes in this release. Please file an issue if you encounter any unexpected problems after upgrading.