use natively packaged flannel in CoreOS' cloud-configs

in the footsteps of #5254 merge earlier today and per @brendandburns comments
in the PR review thread...

Signed-off-by: António Meireles <antonio.meireles@reformi.st>

docs/getting-started-guides/aws/cloud-configs/master.yaml

@@ -60,32 +60,28 @@ coreos:
         Wants=etcd.service
         After=etcd.service
         After=network-online.target
-        Before=flannel.service
+        Before=flanneld.service
 
         [Service]
         ExecStartPre=/usr/bin/chmod +x /opt/bin/waiter.sh
         ExecStart=/usr/bin/bash /opt/bin/waiter.sh
         RemainAfterExit=true
         Type=oneshot
-    - name: flannel.service
+    - name: flanneld.service
       command: start
-      content: |
-        [Unit]
-        Wants=etcd-waiter.service
-        After=etcd-waiter.service
-        Requires=etcd.service
-        After=etcd.service
-        After=network-online.target
-        Wants=network-online.target
-        Description=flannel is an etcd backed overlay network for containers
-
-        [Service]
-        Type=notify
-        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
-        ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
-        ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
-        ExecStartPre=-/usr/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
-        ExecStart=/opt/bin/flanneld
+      drop-ins:
+        - name: 50-network-config.conf
+          content: |
+            [Service]
+            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
+            ExecStart=
+            ExecStart=/usr/libexec/sdnotify-proxy /run/flannel/sd.sock \
+                /usr/bin/docker run --net=host --privileged=true --rm \
+                    --volume=/run/flannel:/run/flannel \
+                    --env=NOTIFY_SOCKET=/run/flannel/sd.sock \
+                    --env-file=/run/flannel/options.env \
+                    --volume=${ETCD_SSL_DIR}:/etc/ssl/etcd:ro \
+                    quay.io/coreos/flannel:${FLANNEL_VER} /opt/bin/flanneld --ip-masq=true --iface=eth1
     - name: docker-cache.service
       command: start
       content: |

docs/getting-started-guides/aws/cloud-configs/node.yaml

@@ -9,20 +9,24 @@ coreos:
       mask: true
     - name: fleet.service
       command: start
-    - name: flannel.service
+    - name: flanneld.service
       command: start
-      content: |
-        [Unit]
-        After=network-online.target 
-        Wants=network-online.target
-        Description=flannel is an etcd backed overlay network for containers
-
-        [Service]
-        Type=notify
-        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
-        ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
-        ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
-        ExecStart=/opt/bin/flanneld -etcd-endpoints http://<master-private-ip>:4001
+      drop-ins:
+        - name: 50-network-config.conf
+          content: |
+            [Service]
+            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
+            # as we need to turn eth1 as the default interface
+            # https://github.com/coreos/bugs/issues/228 is sorted
+            # see notes in https://github.com/coreos/flannel/pull/137
+            ExecStart=
+            ExecStart=/usr/libexec/sdnotify-proxy /run/flannel/sd.sock \
+                /usr/bin/docker run --net=host --privileged=true --rm \
+                    --volume=/run/flannel:/run/flannel \
+                    --env=NOTIFY_SOCKET=/run/flannel/sd.sock \
+                    --env-file=/run/flannel/options.env \
+                    --volume=${ETCD_SSL_DIR}:/etc/ssl/etcd:ro \
+                    quay.io/coreos/flannel:${FLANNEL_VER} /opt/bin/flanneld -etcd-endpoints http://<master-private-ip>:4001 --ip-masq=true --iface=eth1
     - name: docker.service
       command: start
       drop-ins:

docs/getting-started-guides/coreos/cloud-configs/master.yaml

@@ -62,32 +62,28 @@ coreos:
         Wants=etcd.service
         After=etcd.service
         After=network-online.target
-        Before=flannel.service
+        Before=flanneld.service
 
         [Service]
         ExecStartPre=/usr/bin/chmod +x /opt/bin/waiter.sh
         ExecStart=/usr/bin/bash /opt/bin/waiter.sh
         RemainAfterExit=true
         Type=oneshot
-    - name: flannel.service
+    - name: flanneld.service
       command: start
-      content: |
-        [Unit]
-        Wants=etcd-waiter.service
-        After=etcd-waiter.service
-        Requires=etcd.service
-        After=etcd.service
-        After=network-online.target
-        Wants=network-online.target
-        Description=flannel is an etcd backed overlay network for containers
-
-        [Service]
-        Type=notify
-        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
-        ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
-        ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
-        ExecStartPre=-/usr/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
-        ExecStart=/opt/bin/flanneld
+      drop-ins:
+        - name: 50-network-config.conf
+          content: |
+            [Service]
+            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
+            ExecStart=
+            ExecStart=/usr/libexec/sdnotify-proxy /run/flannel/sd.sock \
+                /usr/bin/docker run --net=host --privileged=true --rm \
+                    --volume=/run/flannel:/run/flannel \
+                    --env=NOTIFY_SOCKET=/run/flannel/sd.sock \
+                    --env-file=/run/flannel/options.env \
+                    --volume=${ETCD_SSL_DIR}:/etc/ssl/etcd:ro \
+                    quay.io/coreos/flannel:${FLANNEL_VER} /opt/bin/flanneld --ip-masq=true --iface=eth1
     - name: docker-cache.service
       command: start
       content: |

docs/getting-started-guides/coreos/cloud-configs/node.yaml

@@ -9,20 +9,21 @@ coreos:
       mask: true
     - name: fleet.service
       command: start
-    - name: flannel.service
+    - name: flanneld.service
       command: start
-      content: |
-        [Unit]
-        After=network-online.target
-        Wants=network-online.target
-        Description=flannel is an etcd backed overlay network for containers
-
-        [Service]
-        Type=notify
-        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
-        ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
-        ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
-        ExecStart=/opt/bin/flanneld -etcd-endpoints http://<master-private-ip>:4001
+      drop-ins:
+        - name: 50-network-config.conf
+          content: |
+            [Service]
+            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
+            ExecStart=
+            ExecStart=/usr/libexec/sdnotify-proxy /run/flannel/sd.sock \
+                /usr/bin/docker run --net=host --privileged=true --rm \
+                    --volume=/run/flannel:/run/flannel \
+                    --env=NOTIFY_SOCKET=/run/flannel/sd.sock \
+                    --env-file=/run/flannel/options.env \
+                    --volume=${ETCD_SSL_DIR}:/etc/ssl/etcd:ro \
+                    quay.io/coreos/flannel:${FLANNEL_VER} /opt/bin/flanneld -etcd-endpoints http://<master-private-ip>:4001 --ip-masq=true --iface=eth1
     - name: docker.service
       command: start
       drop-ins:

docs/getting-started-guides/coreos/cloud-configs/standalone.yaml

@@ -23,32 +23,28 @@ coreos:
         Wants=etcd.service
         After=etcd.service
         After=network-online.target
-        Before=flannel.service
+        Before=flanneld.service
 
         [Service]
         ExecStartPre=/usr/bin/chmod +x /opt/bin/waiter.sh
         ExecStart=/usr/bin/bash /opt/bin/waiter.sh
         RemainAfterExit=true
         Type=oneshot
-    - name: flannel.service
+    - name: flanneld.service
       command: start
-      content: |
-        [Unit]
-        Wants=etcd-waiter.service
-        After=etcd-waiter.service
-        Requires=etcd.service
-        After=etcd.service
-        After=network-online.target
-        Wants=network-online.target
-        Description=flannel is an etcd backed overlay network for containers
-
-        [Service]
-        Type=notify
-        ExecStartPre=-/usr/bin/mkdir -p /opt/bin
-        ExecStartPre=/usr/bin/wget -N -P /opt/bin https://storage.googleapis.com/k8s/flanneld
-        ExecStartPre=/usr/bin/chmod +x /opt/bin/flanneld
-        ExecStartPre=-/usr/bin/etcdctl mk /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
-        ExecStart=/opt/bin/flanneld
+      drop-ins:
+        - name: 50-network-config.conf
+          content: |
+            [Service]
+            ExecStartPre=/usr/bin/etcdctl set /coreos.com/network/config '{"Network":"10.244.0.0/16", "Backend": {"Type": "vxlan"}}'
+            ExecStart=
+            ExecStart=/usr/libexec/sdnotify-proxy /run/flannel/sd.sock \
+                /usr/bin/docker run --net=host --privileged=true --rm \
+                    --volume=/run/flannel:/run/flannel \
+                    --env=NOTIFY_SOCKET=/run/flannel/sd.sock \
+                    --env-file=/run/flannel/options.env \
+                    --volume=${ETCD_SSL_DIR}:/etc/ssl/etcd:ro \
+                    quay.io/coreos/flannel:${FLANNEL_VER} /opt/bin/flanneld --ip-masq=true --iface=eth1
     - name: docker-cache.service
       command: start
       content: |