Create or update dockerpihole

taken from official pihole but added the update and removal so if run it always reinstalls the most recent version

dockerpihole

@@ -0,0 +1,42 @@
+#!/bin/bash
+
+# https://github.com/pi-hole/docker-pi-hole/blob/master/README.md
+
+PIHOLE_BASE="${PIHOLE_BASE:-$(pwd)}"
+[[ -d "$PIHOLE_BASE" ]] || mkdir -p "$PIHOLE_BASE" || { echo "Couldn't create storage directory: $PIHOLE_BASE"; exit 1; }
+
+docker pull pihole/pihole
+docker rm -f pihole
+# Note: FTLCONF_LOCAL_IPV4 should be replaced with your external ip.
+docker run -d \
+    --name pihole \
+    -p 53:53/tcp -p 53:53/udp \
+    -p 80:80 \
+    -e TZ="Europe/Madrid" \
+    -v "${PIHOLE_BASE}/etc-pihole:/etc/pihole" \
+    -v "${PIHOLE_BASE}/etc-dnsmasq.d:/etc/dnsmasq.d" \
+    --dns=127.0.0.1 --dns=1.1.1.1 \
+    --restart=unless-stopped \
+    --hostname pi.hole \
+    -e VIRTUAL_HOST="pi.hole" \
+    -e PROXY_LOCATION="pi.hole" \
+    -e FTLCONF_LOCAL_IPV4="192.168.1.107" \
+    --security-opt seccomp=unconfined \
+    pihole/pihole:latest
+
+printf 'Starting up pihole container '
+for i in $(seq 1 20); do
+    if [ "$(docker inspect -f "{{.State.Health.Status}}" pihole)" == "healthy" ] ; then
+        printf ' OK'
+        echo -e "\n$(docker logs pihole 2> /dev/null | grep 'password:') for your pi-hole: http://${IP}/admin/"
+        exit 0
+    else
+        sleep 3
+        printf '.'
+    fi
+
+    if [ $i -eq 20 ] ; then
+        echo -e "\nTimed out waiting for Pi-hole start, consult your container logs for more info (\`docker logs pihole\`)"
+        exit 1
+    fi
+done;