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fix(argo-cd): Enable Redis authentication in the default installation (#2705)

pull/2708/head argo-cd-6.10.0
Marco Maurer (-Kilchhofer) 2024-05-21 18:36:32 +02:00 committed by GitHub
parent f9eb0b394c
commit fcee9a6046
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16 changed files with 352 additions and 14 deletions
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10
charts/argo-cd/Chart.yaml
View File

@ -1,9 +1,9 @@
apiVersion: v2
appVersion: v2.11.0
appVersion: v2.11.1
kubeVersion: ">=1.23.0-0"
description: A Helm chart for Argo CD, a declarative, GitOps continuous delivery tool for Kubernetes.
name: argo-cd
version: 6.9.3
version: 6.10.0
home: https://github.com/argoproj/argo-helm
icon: https://argo-cd.readthedocs.io/en/stable/assets/logo.png
sources:
@ -26,5 +26,7 @@ annotations:
fingerprint: 2B8F22F57260EFA67BE1C5824B11F800CD9D2252
url: https://argoproj.github.io/argo-helm/pgp_keys.asc
artifacthub.io/changes: |
- kind: fixed
description: Restarting dex pod when `argocd-cm` configmap changes
- kind: security
description: Enable Redis authentication in the default installation (GHSA-9766-5277-j5hr)
- kind: changed
description: Bump argo-cd to v2.11.1

60
charts/argo-cd/README.md
View File

@ -278,6 +278,39 @@ For full list of changes please check ArtifactHub [changelog].
Highlighted versions provide information about additional steps that should be performed by user when upgrading to newer version.
### 6.10.0
This version introduces authentication for Redis to mitigate GHSA-9766-5277-j5hr.
#### How to rotate Redis secret?
Upstream steps in the [FAQ] are not enough, since we chose a different approach.
(We use a Kubernetes Job with [Chart Hooks] to create the auth secret `argocd-redis`.)
Steps to roteate the secret when using the helm chart (bold step is additional to upstream):
* Delete `argocd-redis` secret in the namespace where Argo CD is installed.
```bash
kubectl delete secret argocd-redis -n <argocd namesapce>
```
* **Perform a helm upgrade**
```bash
helm upgrade argocd argo/argo-cd --reuse-values --wait
```
* If you are running Redis in HA mode, restart Redis in HA.
```bash
kubectl rollout restart deployment argocd-redis-ha-haproxy
kubectl rollout restart statefulset argocd-redis-ha-server
```
* If you are running Redis in non-HA mode, restart Redis.
```bash
kubectl rollout restart deployment argocd-redis
```
* Restart other components.
```bash
kubectl rollout restart deployment argocd-server argocd-repo-server
kubectl rollout restart statefulset argocd-application-controller
```
### 6.9.0
ApplicationSet controller is always created to follow [upstream's manifest](https://github.com/argoproj/argo-cd/blob/v2.11.0/manifests/core-install/kustomization.yaml#L9).
@ -1271,8 +1304,10 @@ The main options are listed here:
|-----|------|---------|-------------|
| redis-ha.additionalAffinities | object | `{}` | Additional affinities to add to the Redis server pods. |
| redis-ha.affinity | string | `""` | Assign custom [affinity] rules to the Redis pods. |
| redis-ha.auth | bool | `true` | Configures redis-ha with AUTH |
| redis-ha.containerSecurityContext | object | See [values.yaml] | Redis HA statefulset container-level security context |
| redis-ha.enabled | bool | `false` | Enables the Redis HA subchart and disables the custom Redis single node deployment |
| redis-ha.existingSecret | string | `"argocd-redis"` | Existing Secret to use for redis-ha authentication. By default the redis-secret-init Job is generating this Secret. |
| redis-ha.exporter.enabled | bool | `false` | Enable Prometheus redis-exporter sidecar |
| redis-ha.exporter.image | string | `"public.ecr.aws/bitnami/redis-exporter"` | Repository to use for the redis-exporter |
| redis-ha.exporter.tag | string | `"1.58.0"` | Tag to use for the redis-exporter |
@ -1316,6 +1351,29 @@ If you want to use an existing Redis (eg. a managed service from a cloud provide
| externalRedis.secretAnnotations | object | `{}` | External Redis Secret annotations |
| externalRedis.username | string | `""` | External Redis username |
### Redis secret-init
The helm chart deploys a Job to setup a random password which is used to secure the Redis. The Redis password is stored in Kubernetes secret `argocd-redis` with key `auth` in the namespace where Argo CD is installed.
If you use an External Redis (See Option 3 above), this Job is not deployed.
| Key | Type | Default | Description |
|-----|------|---------|-------------|
| redisSecretInit.containerSecurityContext | object | See [values.yaml] | Application controller container-level security context |
| redisSecretInit.image.imagePullPolicy | string | `""` (defaults to global.image.imagePullPolicy) | Image pull policy for the Redis secret-init Job |
| redisSecretInit.image.repository | string | `""` (defaults to global.image.repository) | Repository to use for the Redis secret-init Job |
| redisSecretInit.image.tag | string | `""` (defaults to global.image.tag) | Tag to use for the Redis secret-init Job |
| redisSecretInit.imagePullSecrets | list | `[]` (defaults to global.imagePullSecrets) | Secrets with credentials to pull images from a private registry |
| redisSecretInit.jobAnnotations | object | `{}` | Annotations to be added to the Redis secret-init Job |
| redisSecretInit.name | string | `"redis-secret-init"` | Redis secret-init name |
| redisSecretInit.podAnnotations | object | `{}` | Annotations to be added to the Redis secret-init Job |
| redisSecretInit.podLabels | object | `{}` | Labels to be added to the Redis secret-init Job |
| redisSecretInit.resources | object | `{}` | Resource limits and requests for Redis secret-init Job |
| redisSecretInit.securityContext | object | `{}` | Redis secret-init Job pod-level security context |
| redisSecretInit.serviceAccount.annotations | object | `{}` | Annotations applied to created service account |
| redisSecretInit.serviceAccount.automountServiceAccountToken | bool | `true` | Automount API credentials for the Service Account |
| redisSecretInit.serviceAccount.create | bool | `true` | Create a service account for the redis pod |
| redisSecretInit.serviceAccount.name | string | `""` | Service account name for redis pod |
## ApplicationSet
| Key | Type | Default | Description |
@ -1507,8 +1565,10 @@ Autogenerated from chart metadata using [helm-docs](https://github.com/norwoodj/
[BackendConfigSpec]: https://cloud.google.com/kubernetes-engine/docs/concepts/backendconfig#backendconfigspec_v1beta1_cloudgooglecom
[CSS styles]: https://argo-cd.readthedocs.io/en/stable/operator-manual/custom-styles/
[changelog]: https://artifacthub.io/packages/helm/argo/argo-cd?modal=changelog
[Chart Hooks]: https://helm.sh/docs/topics/charts_hooks/
[DNS configuration]: https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/
[external cluster credentials]: https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup/#clusters
[FAQ]: https://argo-cd.readthedocs.io/en/stable/faq/
[FrontendConfigSpec]: https://cloud.google.com/kubernetes-engine/docs/how-to/ingress-features#configuring_ingress_features_through_frontendconfig_parameters
[declarative setup]: https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup
[gRPC-ingress]: https://argo-cd.readthedocs.io/en/stable/operator-manual/ingress/

48
charts/argo-cd/README.md.gotmpl
View File

@ -278,6 +278,39 @@ For full list of changes please check ArtifactHub [changelog].
Highlighted versions provide information about additional steps that should be performed by user when upgrading to newer version.
### 6.10.0
This version introduces authentication for Redis to mitigate GHSA-9766-5277-j5hr.
#### How to rotate Redis secret?
Upstream steps in the [FAQ] are not enough, since we chose a different approach.
(We use a Kubernetes Job with [Chart Hooks] to create the auth secret `argocd-redis`.)
Steps to roteate the secret when using the helm chart (bold step is additional to upstream):
* Delete `argocd-redis` secret in the namespace where Argo CD is installed.
```bash
kubectl delete secret argocd-redis -n <argocd namesapce>
```
* **Perform a helm upgrade**
```bash
helm upgrade argocd argo/argo-cd --reuse-values --wait
```
* If you are running Redis in HA mode, restart Redis in HA.
```bash
kubectl rollout restart deployment argocd-redis-ha-haproxy
kubectl rollout restart statefulset argocd-redis-ha-server
```
* If you are running Redis in non-HA mode, restart Redis.
```bash
kubectl rollout restart deployment argocd-redis
```
* Restart other components.
```bash
kubectl rollout restart deployment argocd-server argocd-repo-server
kubectl rollout restart statefulset argocd-application-controller
```
### 6.9.0
ApplicationSet controller is always created to follow [upstream's manifest](https://github.com/argoproj/argo-cd/blob/v2.11.0/manifests/core-install/kustomization.yaml#L9).
@ -722,6 +755,19 @@ If you want to use an existing Redis (eg. a managed service from a cloud provide
{{- end }}
{{- end }}
### Redis secret-init
The helm chart deploys a Job to setup a random password which is used to secure the Redis. The Redis password is stored in Kubernetes secret `argocd-redis` with key `auth` in the namespace where Argo CD is installed.
If you use an External Redis (See Option 3 above), this Job is not deployed.
| Key | Type | Default | Description |
|-----|------|---------|-------------|
{{- range .Values }}
{{- if hasPrefix "redisSecretInit" .Key }}
| {{ .Key }} | {{ .Type }} | {{ if .Default }}{{ .Default }}{{ else }}{{ .AutoDefault }}{{ end }} | {{ if .Description }}{{ .Description }}{{ else }}{{ .AutoDescription }}{{ end }} |
{{- end }}
{{- end }}
## ApplicationSet
| Key | Type | Default | Description |
@ -750,8 +796,10 @@ Autogenerated from chart metadata using [helm-docs](https://github.com/norwoodj/
[BackendConfigSpec]: https://cloud.google.com/kubernetes-engine/docs/concepts/backendconfig#backendconfigspec_v1beta1_cloudgooglecom
[CSS styles]: https://argo-cd.readthedocs.io/en/stable/operator-manual/custom-styles/
[changelog]: https://artifacthub.io/packages/helm/argo/argo-cd?modal=changelog
[Chart Hooks]: https://helm.sh/docs/topics/charts_hooks/
[DNS configuration]: https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/
[external cluster credentials]: https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup/#clusters
[FAQ]: https://argo-cd.readthedocs.io/en/stable/faq/
[FrontendConfigSpec]: https://cloud.google.com/kubernetes-engine/docs/how-to/ingress-features#configuring_ingress_features_through_frontendconfig_parameters
[declarative setup]: https://argo-cd.readthedocs.io/en/stable/operator-manual/declarative-setup
[gRPC-ingress]: https://argo-cd.readthedocs.io/en/stable/operator-manual/ingress/

19
charts/argo-cd/templates/_helpers.tpl
View File

@ -86,6 +86,25 @@ Create the name of the redis service account to use
{{- end -}}
{{- end -}}
{{/*
Create Redis secret-init name
*/}}
{{- define "argo-cd.redisSecretInit.fullname" -}}
{{- printf "%s-%s" (include "argo-cd.fullname" .) .Values.redisSecretInit.name | trunc 63 | trimSuffix "-" -}}
{{- end -}}
{{/*
Create the name of the Redis secret-init service account to use
*/}}
{{- define "argo-cd.redisSecretInit.serviceAccountName" -}}
{{- if .Values.redisSecretInit.serviceAccount.create -}}
{{ default (include "argo-cd.redisSecretInit.fullname" .) .Values.redis.serviceAccount.name }}
{{- else -}}
{{ default "default" .Values.redisSecretInit.serviceAccount.name }}
{{- end -}}
{{- end -}}
{{/*
Create argocd server name and version as used by the chart label.
*/}}

8
charts/argo-cd/templates/argocd-application-controller/deployment.yaml
View File

@ -199,15 +199,19 @@ spec:
- name: REDIS_USERNAME
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
key: redis-username
optional: true
- name: REDIS_PASSWORD
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
{{- if .Values.externalRedis.host }}
key: redis-password
optional: true
{{- else }}
key: auth
{{- end }}
- name: ARGOCD_DEFAULT_CACHE_EXPIRATION
valueFrom:
configMapKeyRef:

8
charts/argo-cd/templates/argocd-application-controller/statefulset.yaml
View File

@ -198,15 +198,19 @@ spec:
- name: REDIS_USERNAME
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
key: redis-username
optional: true
- name: REDIS_PASSWORD
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
{{- if .Values.externalRedis.host }}
key: redis-password
optional: true
{{- else }}
key: auth
{{- end }}
- name: ARGOCD_DEFAULT_CACHE_EXPIRATION
valueFrom:
configMapKeyRef:

2
charts/argo-cd/templates/argocd-configs/externalredis-secret.yaml
View File

@ -2,7 +2,7 @@
apiVersion: v1
kind: Secret
metadata:
name: {{ include "argo-cd.redis.fullname" . }}
name: argocd-redis
namespace: {{ include "argo-cd.namespace" . }}
labels:
{{- include "argo-cd.labels" (dict "context" $) | nindent 4 }}

8
charts/argo-cd/templates/argocd-repo-server/deployment.yaml
View File

@ -175,15 +175,19 @@ spec:
- name: REDIS_USERNAME
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
key: redis-username
optional: true
- name: REDIS_PASSWORD
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
{{- if .Values.externalRedis.host }}
key: redis-password
optional: true
{{- else }}
key: auth
{{- end }}
- name: ARGOCD_DEFAULT_CACHE_EXPIRATION
valueFrom:
configMapKeyRef:

8
charts/argo-cd/templates/argocd-server/deployment.yaml
View File

@ -243,15 +243,19 @@ spec:
- name: REDIS_USERNAME
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
key: redis-username
optional: true
- name: REDIS_PASSWORD
valueFrom:
secretKeyRef:
name: {{ default (include "argo-cd.redis.fullname" .) .Values.externalRedis.existingSecret }}
name: {{ default "argocd-redis" .Values.externalRedis.existingSecret }}
{{- if .Values.externalRedis.host }}
key: redis-password
optional: true
{{- else }}
key: auth
{{- end }}
- name: ARGOCD_DEFAULT_CACHE_EXPIRATION
valueFrom:
configMapKeyRef:

54
charts/argo-cd/templates/redis-secret-init/job.yaml Normal file
View File

@ -0,0 +1,54 @@
{{- if not .Values.externalRedis.host }}
apiVersion: batch/v1
kind: Job
metadata:
name: {{ include "argo-cd.redisSecretInit.fullname" . }}
namespace: {{ .Release.Namespace | quote }}
annotations:
"helm.sh/hook": pre-install,pre-upgrade
"helm.sh/hook-delete-policy": before-hook-creation
{{- range $key, $value := .Values.redisSecretInit.jobAnnotations }}
{{ $key }}: {{ $value | quote }}
{{- end }}
labels:
{{- include "argo-cd.labels" (dict "context" . "component" .Values.redisSecretInit.name "name" .Values.redisSecretInit.name) | nindent 4 }}
spec:
template:
metadata:
labels:
{{- include "argo-cd.labels" (dict "context" . "component" .Values.redisSecretInit.name "name" .Values.redisSecretInit.name) | nindent 8 }}
{{- with (mergeOverwrite (deepCopy .Values.global.podLabels) .Values.redisSecretInit.podLabels) }}
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with (mergeOverwrite (deepCopy .Values.global.podAnnotations) .Values.redisSecretInit.podAnnotations) }}
annotations:
{{- range $key, $value := . }}
{{ $key }}: {{ $value | quote }}
{{- end }}
{{- end }}
spec:
{{- with .Values.global.imagePullSecrets }}
imagePullSecrets:
{{ toYaml . | nindent 8 }}
{{- end }}
containers:
- command:
- argocd
- admin
- redis-initial-password
image: {{ default .Values.global.image.repository .Values.redisSecretInit.image.repository }}:{{ default (include "argo-cd.defaultTag" .) .Values.redisSecretInit.image.tag }}
imagePullPolicy: {{ default .Values.global.image.imagePullPolicy .Values.redisSecretInit.image.imagePullPolicy }}
name: secret-init
resources:
{{- toYaml .Values.redisSecretInit.resources | nindent 10 }}
{{- with .Values.redisSecretInit.containerSecurityContext }}
securityContext:
{{- toYaml . | nindent 10 }}
{{- end }}
{{- with .Values.redisSecretInit.securityContext }}
securityContext:
{{- toYaml . | nindent 8 }}
{{- end }}
restartPolicy: OnFailure
serviceAccountName: {{ include "argo-cd.redisSecretInit.serviceAccountName" . }}
{{- end }}

27
charts/argo-cd/templates/redis-secret-init/role.yaml Normal file
View File

@ -0,0 +1,27 @@
{{- if not .Values.externalRedis.host }}
apiVersion: rbac.authorization.k8s.io/v1
kind: Role
metadata:
annotations:
"helm.sh/hook": pre-install,pre-upgrade
"helm.sh/hook-delete-policy": before-hook-creation
labels:
{{- include "argo-cd.labels" (dict "context" . "component" .Values.redisSecretInit.name "name" .Values.redisSecretInit.name) | nindent 4 }}
name: {{ include "argo-cd.redisSecretInit.fullname" . }}
namespace: {{ .Release.Namespace | quote }}
rules:
- apiGroups:
- ""
resources:
- secrets
resourceNames:
- argocd-redis
verbs:
- get
- apiGroups:
- ""
resources:
- secrets
verbs:
- create
{{- end }}

19
charts/argo-cd/templates/redis-secret-init/rolebinding.yaml Normal file
View File

@ -0,0 +1,19 @@
{{- if not .Values.externalRedis.host }}
apiVersion: rbac.authorization.k8s.io/v1
kind: RoleBinding
metadata:
annotations:
"helm.sh/hook": pre-install,pre-upgrade
"helm.sh/hook-delete-policy": before-hook-creation
labels:
{{- include "argo-cd.labels" (dict "context" . "component" .Values.redisSecretInit.name "name" .Values.redisSecretInit.name) | nindent 4 }}
name: {{ include "argo-cd.redisSecretInit.fullname" . }}
namespace: {{ .Release.Namespace | quote }}
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: Role
name: {{ include "argo-cd.redisSecretInit.fullname" . }}
subjects:
- kind: ServiceAccount
name: {{ include "argo-cd.redisSecretInit.serviceAccountName" . }}
{{- end }}

16
charts/argo-cd/templates/redis-secret-init/serviceaccount.yaml Normal file
View File

@ -0,0 +1,16 @@
{{- if not .Values.externalRedis.host }}
apiVersion: v1
kind: ServiceAccount
automountServiceAccountToken: {{ .Values.redisSecretInit.serviceAccount.automountServiceAccountToken }}
metadata:
name: {{ include "argo-cd.redisSecretInit.serviceAccountName" . }}
namespace: {{ .Release.Namespace | quote }}
annotations:
"helm.sh/hook": pre-install,pre-upgrade
"helm.sh/hook-delete-policy": before-hook-creation
{{- range $key, $value := .Values.redisSecretInit.serviceAccount.annotations }}
{{ $key }}: {{ $value | quote }}
{{- end }}
labels:
{{- include "argo-cd.labels" (dict "context" . "component" .Values.redisSecretInit.name "name" .Values.redisSecretInit.name) | nindent 4 }}
{{- end }}

8
charts/argo-cd/templates/redis/deployment.yaml
View File

@ -65,8 +65,14 @@ spec:
- ""
- --appendonly
- "no"
{{- with (concat .Values.global.env .Values.redis.env) }}
- --requirepass $(REDIS_PASSWORD)
env:
- name: REDIS_PASSWORD
valueFrom:
secretKeyRef:
name: argocd-redis
key: auth
{{- with (concat .Values.global.env .Values.redis.env) }}
{{- toYaml . | nindent 8 }}
{{- end }}
{{- with .Values.redis.envFrom }}

2
charts/argo-cd/templates/redis/health-configmap.yaml
View File

@ -11,6 +11,7 @@ data:
redis_liveness.sh: |
response=$(
redis-cli \
-a "${REDIS_PASSWORD}" --no-auth-warning \
-h localhost \
-p {{ .Values.redis.containerPorts.redis }} \
ping
@ -23,6 +24,7 @@ data:
redis_readiness.sh: |
response=$(
redis-cli \
-a "${REDIS_PASSWORD}" --no-auth-warning \
-h localhost \
-p {{ .Values.redis.containerPorts.redis }} \
ping

69
charts/argo-cd/values.yaml
View File

@ -1547,6 +1547,12 @@ redis-ha:
containerSecurityContext:
readOnlyRootFilesystem: true
# -- Configures redis-ha with AUTH
auth: true
# -- Existing Secret to use for redis-ha authentication.
# By default the redis-secret-init Job is generating this Secret.
existingSecret: argocd-redis
# -- Whether the Redis server pods should be forced to run on separate nodes.
hardAntiAffinity: true
@ -1594,6 +1600,69 @@ externalRedis:
# -- External Redis Secret annotations
secretAnnotations: {}
redisSecretInit:
# -- Redis secret-init name
name: redis-secret-init
image:
# -- Repository to use for the Redis secret-init Job
# @default -- `""` (defaults to global.image.repository)
repository: "" # defaults to global.image.repository
# -- Tag to use for the Redis secret-init Job
# @default -- `""` (defaults to global.image.tag)
tag: "" # defaults to global.image.tag
# -- Image pull policy for the Redis secret-init Job
# @default -- `""` (defaults to global.image.imagePullPolicy)
imagePullPolicy: "" # IfNotPresent
# -- Secrets with credentials to pull images from a private registry
# @default -- `[]` (defaults to global.imagePullSecrets)
imagePullSecrets: []
# -- Annotations to be added to the Redis secret-init Job
jobAnnotations: {}
# -- Annotations to be added to the Redis secret-init Job
podAnnotations: {}
# -- Labels to be added to the Redis secret-init Job
podLabels: {}
# -- Resource limits and requests for Redis secret-init Job
resources: {}
# limits:
# cpu: 200m
# memory: 128Mi
# requests:
# cpu: 100m
# memory: 64Mi
# -- Application controller container-level security context
# @default -- See [values.yaml]
containerSecurityContext:
allowPrivilegeEscalation: false
capabilities:
drop:
- ALL
readOnlyRootFilesystem: true
runAsNonRoot: true
seccompProfile:
type: RuntimeDefault
# -- Redis secret-init Job pod-level security context
securityContext: {}
serviceAccount:
# -- Create a service account for the redis pod
create: true
# -- Service account name for redis pod
name: ""
# -- Annotations applied to created service account
annotations: {}
# -- Automount API credentials for the Service Account
automountServiceAccountToken: true
## Server
server:
# -- Argo CD server name