SSH_PORT env variable

Dockerfile

@@ -1,14 +1,13 @@
-FROM alpine:3.6
+FROM alpine:3.7
 
 LABEL maintainer="Amir Mofasser (@amimof)"
 
 COPY sshd_config /etc/ssh/sshd_config
 COPY server /
 
-RUN apk add --no-cache --update openssh bash \
+RUN set -x \
+&&  apk add --no-cache --update openssh bash \
 &&  mkdir -p /var/run/sshd \
 &&  chmod +x /server
 
-EXPOSE 22
-
 CMD ["/server"]

pod.yaml

@@ -0,0 +1,16 @@
+---
+apiVersion: v1
+kind: Pod
+metadata:
+  name: sftp
+spec:
+  containers:
+  - name: sftp
+    image: amimof/sftp
+    env:
+    - name: SSH_USERNAME
+      value: "beyonce"
+    - name: SSH_PASSWORD
+      value: "knowles"
+    ports:
+    - containerPort: 22

server

@@ -42,6 +42,12 @@ else
   sed -i "s/PasswordAuthentication\s[^ ]*/PasswordAuthentication yes/g" /etc/ssh/sshd_config
 fi
 
+# Set Port to listen on
+if [ ! -z "$SSH_PORT" ]; then
+  echo "INFO: Setting Port to ${SSH_PORT}"
+  sed -i "s/Port\s[^ ]*/Port ${SSH_PORT}/g" /etc/ssh/sshd_config
+fi
+
 # Change ownership and permissions of users home root dir
 echo "INFO: Change ownership and permissions of home directory"
 chown root:root /home/$SSH_USERNAME

sshd_config

@@ -1,4 +1,5 @@
 Protocol 2
+Port 22
 UseDNS no
 PermitRootLogin no
 X11Forwarding no