Add option to install openssh-sftp-server

This is needed by `limactl copy`, which uses `scp` internally, and
newer versions of `scp` only support the `sftp` protocol.

See also: https://lwn.net/Articles/835962/

Signed-off-by: Jan Dubois <[email protected]>

Author: jandubois

edition/ci

@@ -1,2 +1,3 @@
 source edition/min
 LIMA_INSTALL_CLOUD_INIT=true
+LIMA_INSTALL_OPENSSH_SFTP_SERVER=true

edition/k3s

@@ -2,3 +2,4 @@ source edition/min
 LIMA_INSTALL_CLOUD_INIT=true
 LIMA_INSTALL_K3S=true
 LIMA_INSTALL_LOGROTATE=true
+LIMA_INSTALL_OPENSSH_SFTP_SERVER=true

edition/min

@@ -11,4 +11,5 @@ export LIMA_INSTALL_IPTABLES=false
 export LIMA_INSTALL_LIMA_INIT=false
 export LIMA_INSTALL_LOGROTATE=false
 export LIMA_INSTALL_NERDCTL=false
+export LIMA_INSTALL_OPENSSH_SFTP_SERVER=false
 export LIMA_INSTALL_SSHFS=false

edition/rd

@@ -10,4 +10,5 @@ LIMA_INSTALL_IPTABLES=true
 LIMA_INSTALL_LIMA_INIT=true
 LIMA_INSTALL_LOGROTATE=true
 LIMA_INSTALL_NERDCTL=true
+LIMA_INSTALL_OPENSSH_SFTP_SERVER=true
 LIMA_INSTALL_SSHFS=true

edition/std

@@ -4,4 +4,5 @@ LIMA_INSTALL_BINFMT_MISC=true
 LIMA_INSTALL_CA_CERTIFICATES=true
 LIMA_INSTALL_IPTABLES=true
 LIMA_INSTALL_LOGROTATE=true
+LIMA_INSTALL_OPENSSH_SFTP_SERVER=true
 LIMA_INSTALL_SSHFS=true

genapkovl-lima.sh

@@ -244,6 +244,10 @@ if [ "${LIMA_INSTALL_NERDCTL}" == "true" ]; then
     done
 fi
 
+if [ "${LIMA_INSTALL_OPENSSH_SFTP_SERVER}" == "true" ]; then
+    echo "openssh-sftp-server" >> "$tmp"/etc/apk/world
+fi
+
 if [ "${LIMA_INSTALL_SSHFS}" == "true" ]; then
     echo "sshfs" >> "$tmp"/etc/apk/world
 fi

mkimg.lima.sh

@@ -43,6 +43,9 @@ profile_lima() {
         if [ "${LIMA_INSTALL_LOGROTATE}" == "true" ]; then
             apks="$apks logrotate"
         fi
+        if [ "${LIMA_INSTALL_OPENSSH_SFTP_SERVER=true}" == "true" ]; then
+            apks="$apks openssh-sftp-server"
+        fi
         if [ "${LIMA_INSTALL_SSHFS}" == "true" ]; then
             apks="$apks sshfs"
         fi