Getting nodejs repo gpg key

src/freedombone-utils-nodejs

 
 function mesh_install_nodejs {
     # Note: this has to be jessie for now
+    if [ ! -d ${rootdir}/$INSTALL_DIR ]; then
+        mkdir ${rootdir}/$INSTALL_DIR
+    fi
+    chroot "${rootdir}" wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key > $INSTALL_DIR/node.gpg.key
+    chroot "${rootdir}" apt-key add $INSTALL_DIR/node.gpg.key
     echo "deb https://deb.nodesource.com/node_7.x jessie main" > ${rootdir}/etc/apt/sources.list.d/nodesource.list
     echo "deb-src https://deb.nodesource.com/node_7.x jessie main" >> ${rootdir}/etc/apt/sources.list.d/nodesource.list
     chroot "${rootdir}" apt-get update
     fi
 
     # Note: this has to be jessie for now
+    if [ ! -d $INSTALL_DIR ]; then
+        mkdir $INSTALL_DIR
+    fi
+    cd $INSTALL_DIR
+    wget -qO- https://deb.nodesource.com/gpgkey/nodesource.gpg.key > $INSTALL_DIR/node.gpg.key
+    apt-key add $INSTALL_DIR/node.gpg.key
     echo "deb https://deb.nodesource.com/node_7.x jessie main" > /etc/apt/sources.list.d/nodesource.list
     echo "deb-src https://deb.nodesource.com/node_7.x jessie main" >> /etc/apt/sources.list.d/nodesource.list