Merge "Allow osbash to enable Vagrant ssh keys"

labs/scripts/osbash/enable_vagrant_ssh_keys.sh

@@ -0,0 +1,37 @@
+#!/usr/bin/env bash
+
+# This script installs the unsecure Vagrant ssh keys. This allows users to
+# log into the VMs using these keys instead of a password.
+
+TOP_DIR=$(cd $(dirname "$0")/.. && pwd)
+source "$TOP_DIR/config/paths"
+source "$LIB_DIR/functions.guest"
+
+indicate_current_auto
+
+exec_logfile
+
+function install_vagrant_public_key {
+    local VAGRANT_KEY_NAME="vagrant.pub"
+    local KEY_URL=https://raw.githubusercontent.com/mitchellh/vagrant/master/keys/$VAGRANT_KEY_NAME
+    local VAGRANT_KEY_DIR=$LIB_DIR/vagrant-ssh-keys
+
+    if [ ! -f "$VAGRANT_KEY_DIR/$VAGRANT_KEY_NAME" ]; then
+        wget --output-document "$VAGRANT_KEY_DIR/$VAGRANT_KEY_NAME" "$KEY_URL"
+        if [ $? -ne 0 ]; then
+            echo >&2 "Error when downloading $KEY_URL"
+            return 1
+        fi
+    fi
+
+    mkdir -p "$HOME/.ssh"
+    chmod 700 "$HOME/.ssh"
+    cat "$VAGRANT_KEY_DIR/$VAGRANT_KEY_NAME" >> "$HOME/.ssh/authorized_keys"
+    chmod 400 "$HOME/.ssh/authorized_keys"
+}
+
+if grep -qs "vagrant insecure public key" "$HOME/.ssh/authorized_keys"; then
+    echo "Vagrant insecure public key already installed"
+else
+    install_vagrant_public_key
+fi