osx-layer.sh

#!/bin/bash

if [ -z "$ENC_PASSWORD" ]; then
  echo "\$ENC_PASSWORD is a required environment variable!!"
  exit 1
fi

NAME=${NAME:-amazon-cloud-drive}
PLACE_SYMLINK_AT=${1:-$HOME/Desktop/}
IMPORT_DIR=${IMPORT_DIR:-/import}
SSH_PORT=1234
# helps host manage guest (container)
SSH_OPTS="NoHostAuthenticationForLocalhost=yes"
PWD=$(pwd)

which sshfs > /dev/null
if [[ $? -gt 0 ]]; then
  echo "sshfs must be installed on the host (osx) system"
  exit 1
fi

echo "# !!Warning!!
# - this script will replace any existing docker image tagged name:$NAME
# - this script will replace any existing docker container named $NAME
#     Replacing the container will ONLY clear the following:
#       - OSX filesystem metadata that exist as 'attrib' changes to inotifywait
#       - Any data that has not yet synced from the existing container to ACD..
#           just don't run this shortly after any large file additions to share.
# - this script will kill any running sshfs processes on host (osx)
#     As an assurance against sshfs bug. If you have other sshfs mounts (you
#     don't), they will need to be reestablished.
"
read -r -p "Are you sure? [Y/n]" RESPONSE
RESPONSE=$(echo $RESPONSE | tr "[:upper:]" "[:lower:]")
echo $RESPONSE
if [[ ! $RESPONSE =~ ^(yes|y| ) ]]; then
  exit 1;
fi

PUB_KEY="$HOME/.ssh/id_rsa.pub"
if [ ! -f "$PUB_KEY" ]; then
  echo "pub key must exist for script. Trying $PUB_KEY"
  exit 1;
fi

# this resolves infrequent bug w/ dissociated mountpoint. stops SSHFS manually.
pkill -9 sshfs
umount -f $PWD/$NAME > /dev/null 2>&1 || true
docker rm -f $NAME > /dev/null 2>&1 || true

# build image used by container
docker build -t name:$NAME .

echo "spinning up docker container"
# (runs daemonized, privileged inotify container for acd with $NAME)
# Note: attrib goes nuts on OSX where filesystem metadata is vastly utilized
#       to enable: "SYNC_MONITORS=create,modify,attrib,move,delete"
docker run \
  -d --name $NAME -p $SSH_PORT:22 \
  -e "NAME=$NAME" \
  -e "ENC_PASSWORD=$ENC_PASSWORD" \
  -e "IMPORT_DIR=$IMPORT_DIR" \
  -e "KEY=$IMPORT_DIR/ACD_DATA_KEY" \
  -e "OAUTH_DATA=$IMPORT_DIR/oauth_data" \
  -e "SYNC_MONITORS=create,modify,move,delete" \
  -v $PWD$IMPORT_DIR:$IMPORT_DIR \
  -w $IMPORT_DIR \
  --privileged --cap-add=ALL \
  name:$NAME /bin/bash \
  -c "$IMPORT_DIR/infinite-encrypted-backup.sh"

# echo PUB_KEY into container for ssh access
INSERT_KEY="mkdir -p /root/.ssh"
INSERT_KEY+=" && chmod 700 /root/.ssh"
INSERT_KEY+=" && touch /root/.ssh/authorized_keys"
INSERT_KEY+=" && chmod 640 /root/.ssh/authorized_keys"
INSERT_KEY+=" && echo '$(cat $PUB_KEY)' >> /root/.ssh/authorized_keys"
echo "Waiting for docker container..."
docker exec -it $NAME /bin/bash -c "$INSERT_KEY"
while test $? -gt 0
do
  sleep 3 && docker exec -it $NAME /bin/bash -c "$INSERT_KEY"
done

# try ssh until it is available, sshfs once it is
echo "Waiting for ssh..."
ssh -p $SSH_PORT -q -o $SSH_OPTS root@localhost exit
while test $? -gt 0
do
  sleep 3 && ssh -p $SSH_PORT -q -o $SSH_OPTS root@localhost exit
done

# touch file to sshfs dir to test
echo "Mount Amazon Cloud Drive FUSE directory on host machine @ $PWD/$NAME"
rm -rf $NAME
mkdir $NAME
sshfs -p $SSH_PORT -o $SSH_OPTS root@localhost:/$NAME $NAME

# symlink to desktop
echo "Creating symlink @ $PLACE_SYMLINK_AT$NAME"
rm -rf $PLACE_SYMLINK_AT$NAME
ln -s $PWD/$NAME/ $PLACE_SYMLINK_AT