From fd9fa03191806fd42482e6e1136302a4f50ab7bb Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asbj=C3=B8rn=20Apeland?= <aude@users.noreply.github.com>
Date: Tue, 3 Aug 2021 13:35:34 +0200
Subject: [PATCH] Add support for custom scripts

This change adds support for putting custom scripts in `/etc/sftp.d`
with the `sftpConfig.customScripts` Helm value.

Upstream looks for executables in `/etc/sftp.d` on startup and runs
them.
---
 templates/custom-scripts.yaml | 10 ++++++++++
 templates/deployment.yaml     | 10 ++++++++++
 values.yaml                   |  1 +
 3 files changed, 21 insertions(+)
 create mode 100644 templates/custom-scripts.yaml

diff --git a/templates/custom-scripts.yaml b/templates/custom-scripts.yaml
new file mode 100644
index 0000000..befd59b
--- /dev/null
+++ b/templates/custom-scripts.yaml
@@ -0,0 +1,10 @@
+{{- if .Values.sftpConfig.customScripts }}
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: {{ template "sftp-server.fullname" . }}-custom-scripts
+data:
+  {{- range $k, $v := .Values.sftpConfig.customScripts }}
+  {{ $k }}: {{ $v | toYaml | indent 2 }}
+  {{- end }}
+{{- end }}
diff --git a/templates/deployment.yaml b/templates/deployment.yaml
index bf44fd4..5fefd78 100644
--- a/templates/deployment.yaml
+++ b/templates/deployment.yaml
@@ -87,6 +87,10 @@ spec:
               subPath: {{ . }}
             {{- end }}
             {{- end }}
+            {{- if .Values.sftpConfig.customScripts }}
+            - name: custom-scripts
+              mountPath: /etc/sftp.d
+            {{- end }}
           livenessProbe:
             tcpSocket:
               port: 22
@@ -120,6 +124,12 @@ spec:
           secretName: {{ .Values.sftpConfig.hostKeys.secret }}
           defaultMode: 384
       {{- end }}
+      {{- if .Values.sftpConfig.customScripts }}
+      - name: custom-scripts
+        configMap:
+          name: {{ include "sftp-server.fullname" . }}-custom-scripts
+          defaultMode: 0755
+      {{- end }}
       {{- if .Values.persistentVolume.enabled }}
       - name: data
         persistentVolumeClaim:
diff --git a/values.yaml b/values.yaml
index da4fc60..e623363 100644
--- a/values.yaml
+++ b/values.yaml
@@ -27,6 +27,7 @@ sftpConfig:
     #- ssh_host_rsa_key
     #- ssh_host_ed25519_key
   authorizedKeys: {}
+  #customScripts: {}
 
 debug:
   enabled: false