First Commit

pkg/synology/dsm7-docker/Dockerfile

@@ -0,0 +1,30 @@
+# vim: ft=dockerfile
+
+FROM alpine:latest as builder
+
+WORKDIR /src
+RUN apk add --no-cache rust cargo \
+  && apk add  openssl-dev \
+  && apk add --update alpine-sdk linux-headers \
+  && git clone --quiet https://github.com/zerotier/ZeroTierOne.git /src \
+  && git reset --quiet --hard ${ZTO_COMMIT} \
+  && make -f make-linux.mk
+
+FROM alpine:latest
+LABEL version=${ZTO_VER}
+LABEL description="ZeroTier One docker image for Synology NAS"
+
+RUN apk add --update --no-cache bash jq libc6-compat libstdc++
+
+EXPOSE 9993/udp
+ENV MAX_WAIT_SECS SLEEP_TIME
+
+COPY --from=builder /src/zerotier-one /usr/sbin/
+RUN mkdir -p /var/lib/zerotier-one \
+  && ln -s /usr/sbin/zerotier-one /usr/sbin/zerotier-idtool \
+  && ln -s /usr/sbin/zerotier-one /usr/sbin/zerotier-cli
+
+COPY entrypoint.sh /entrypoint.sh
+RUN chmod 755 /entrypoint.sh
+
+ENTRYPOINT ["/entrypoint.sh"]

pkg/synology/dsm7-docker/README.md

@@ -0,0 +1,8 @@
+## Docker image for Synology's DSM7
+
+Documentation: [docs.zerotier.com/devices/synology](https://docs.zerotier.com/devices/synology)
+
+### Build & Push changes to DockerHub
+```shell
+./build.sh build
+```

pkg/synology/dsm7-docker/build.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+
+ZTO_VER=$(git describe --tags $(git rev-list --tags --max-count=1))
+ZTO_COMMIT=$(git rev-parse HEAD)
+
+build() {
+  sudo docker login --username=${DOCKERHUB_USERNAME}
+
+  sudo docker buildx build \
+    --push \
+    --platform linux/arm/v7,linux/arm64/v8,linux/amd64 \
+    --tag zerotier/zerotier-synology:${ZTO_VER} \
+    --tag zerotier/zerotier-synology:latest \
+    --build-arg ZTO_COMMIT=${ZTO_COMMIT} \
+    --build-arg ZTO_VER=${ZTO_VER} \
+    .
+}
+
+"$@"

pkg/synology/dsm7-docker/entrypoint.sh

@@ -0,0 +1,82 @@
+#!/bin/bash
+
+set -uo pipefail
+
+trap 'trap " " SIGTERM; kill 0; wait' SIGTERM SIGQUIT SIGINT
+
+echo "Starting Zerotier-One"
+zerotier-one -d
+
+echo "Wait for ZT service to come online before attempting queries..."
+MAX_WAIT_SECS="${MAX_WAIT_SECS:-90}"
+SLEEP_TIME="${SLEEP_TIME:-15}"
+if [[ "$SLEEP_TIME" -le 0 ]]
+then
+  SLEEP_TIME=1
+fi
+
+iterations=$((MAX_WAIT_SECS/SLEEP_TIME))
+online=false
+
+for ((s=0; s<=iterations; s++))
+do
+    online="$(zerotier-cli -j info | jq '.online' 2>/dev/null)"
+    if [[ "$online" == "true" ]]
+    then
+        break
+    fi
+    sleep "$SLEEP_TIME"
+    echo " ."
+done
+
+if [[ "$online" != "true" ]]
+then
+    echo "Waited $MAX_WAIT_SECS for zerotier-one to start, exiting." >&2
+    exit 1
+fi
+echo "done."
+
+(
+echo "Starting route helper"
+while true
+do
+    if ! NETWORK_LIST="$(zerotier-cli -j listnetworks)"
+    then
+      echo "Route helper: $NETWORK_LIST" >&2
+      exit 1
+    fi
+    NETWORK_COUNT="$(jq -r '. | length' <<< "$NETWORK_LIST")"
+    if [[ "$NETWORK_COUNT" -gt 0 ]]
+    then
+        for ((j=0; j<=$((NETWORK_COUNT-1)); j++))
+        do
+            ALLOW_DEFAULT="$(jq -r '.['$j'].allowDefault' <<< "$NETWORK_LIST")"
+            ROUTE_COUNT="$(jq -r '.['$j'].routes | length' <<< "$NETWORK_LIST")"
+            for ((k=0; k<=$((ROUTE_COUNT-1)); k++))
+            do
+                ROUTE="$(jq -r '.['$j'].routes['$k'].target' <<< "$NETWORK_LIST")"
+                VIA="$(jq -r '.['$j'].routes['$k'].via' <<< "$NETWORK_LIST")"
+                if [[ -n "$ROUTE" ]]
+                then
+                    # check if route is default and allowDefault enabled for this network
+                    if [[ "$ROUTE" == "0.0.0.0/0" && "$ALLOW_DEFAULT" == "false" ]]
+                    then
+                      continue
+                    fi
+                    EXIST="$(ip -o route show "$ROUTE")"
+                    if [[ -z "${EXIST}" && "$VIA" == "null" ]]
+                    then
+                        IFNAME="$(jq -r '.['$j'] | .portDeviceName' <<< "$NETWORK_LIST")"
+                        echo " Adding route $ROUTE to dev $IFNAME"
+                        ip route add "$ROUTE" dev "$IFNAME"
+                        # Routes will be deleted when ZT brings the interface down
+                    fi
+                fi
+            done
+        done
+    fi
+    sleep 15
+done ) &
+
+wait
+