First Commit

entrypoint.sh.release

@@ -0,0 +1,124 @@
+#!/bin/sh
+
+grepzt() {
+  [ -f /var/lib/zerotier-one/zerotier-one.pid -a -n "$(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)" -a -d "/proc/$(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)" ]
+  return $?
+}
+
+mkztfile() {
+  file=$1
+  mode=$2
+  content=$3
+
+  mkdir -p /var/lib/zerotier-one
+  echo "$content" > "/var/lib/zerotier-one/$file"
+  chmod "$mode" "/var/lib/zerotier-one/$file"
+}
+
+if [ "x$ZEROTIER_API_SECRET" != "x" ]
+then
+  mkztfile authtoken.secret 0600 "$ZEROTIER_API_SECRET"
+fi
+
+if [ "x$ZEROTIER_IDENTITY_PUBLIC" != "x" ]
+then
+  mkztfile identity.public 0644 "$ZEROTIER_IDENTITY_PUBLIC"
+fi
+
+if [ "x$ZEROTIER_IDENTITY_SECRET" != "x" ]
+then
+  mkztfile identity.secret 0600 "$ZEROTIER_IDENTITY_SECRET"
+fi
+
+mkztfile zerotier-one.port 0600 "9993"
+
+killzerotier() {
+  log "Killing zerotier"
+  kill $(cat /var/lib/zerotier-one/zerotier-one.pid 2>/dev/null)
+  exit 0
+}
+
+log_header() {
+  echo -n "\r=>"
+}
+
+log_detail_header() {
+  echo -n "\r===>"
+}
+
+log() {
+  echo "$(log_header)" "$@"
+}
+
+log_params() {
+  title=$1
+  shift
+  log "$title" "[$@]"
+}
+
+log_detail() {
+  echo "$(log_detail_header)" "$@"
+}
+
+log_detail_params() {
+  title=$1
+  shift
+  log_detail "$title" "[$@]"
+}
+
+trap killzerotier INT TERM
+
+log "Configuring networks to join"
+mkdir -p /var/lib/zerotier-one/networks.d
+
+log_params "Joining networks from command line:" $@
+for i in "$@"
+do
+  log_detail_params "Configuring join:" "$i"
+  touch "/var/lib/zerotier-one/networks.d/${i}.conf"
+done
+
+if [ "x$ZEROTIER_JOIN_NETWORKS" != "x" ]
+then
+  log_params "Joining networks from environment:" $ZEROTIER_JOIN_NETWORKS
+  for i in $ZEROTIER_JOIN_NETWORKS
+  do
+    log_detail_params "Configuring join:" "$i"
+    touch "/var/lib/zerotier-one/networks.d/${i}.conf"
+  done
+fi
+
+log "Starting ZeroTier"
+nohup /usr/sbin/zerotier-one &
+
+while ! grepzt
+do
+  log_detail "ZeroTier hasn't started, waiting a second"
+
+  if [ -f nohup.out ]
+  then
+    tail -n 10 nohup.out
+  fi
+
+  sleep 1
+done
+
+log_params "Writing healthcheck for networks:" $@
+
+cat >/healthcheck.sh <<EOF
+#!/bin/bash
+for i in $@ $ZEROTIER_JOIN_NETWORKS
+do
+  [ "\$(zerotier-cli get \$i status)" = "OK" ] || exit 1
+done
+EOF
+
+chmod +x /healthcheck.sh
+
+log_params "zerotier-cli info:" "$(zerotier-cli info)"
+
+log "Sleeping infinitely"
+while true
+do
+  sleep 1
+done