Add remote node support to nullpoint cluster
- Full nodes: contribute storage, act as lighthouses - Remote nodes: don't contribute storage, not lighthouses, but have full read/write access - Expanded README with clearer feature descriptions - Interactive node type selection during join - Remote nodes useful for edge locations or low-storage devices
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README.md
17
README.md
@ -51,10 +51,23 @@ The installer will:
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<br>
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</div>
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Distributed storage cluster with [Nebula](https://github.com/slackhq/nebula) mesh networking and [GlusterFS](https://www.gluster.org/).
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Encrypted network and storage pool using [Nebula](https://github.com/slackhq/nebula) mesh VPN and [GlusterFS](https://www.gluster.org/) distributed filesystem.
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### Features
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- **Encrypted mesh network** - All traffic encrypted via Nebula overlay (192.168.100.0/24)
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- **Distributed storage** - Data replicated across all storage nodes
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- **Simple joining** - Single preshared secret + lighthouse endpoint
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- **Flexible nodes** - Full nodes (replicate data) or remote nodes (no storage)
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### Setup
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```bash
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wget -qO- https://git.dominik-roth.eu/dodox/nullpoint/raw/branch/master/cluster-setup.sh | sudo bash
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```
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Join via single preshared secret and at least one lighthouse server. Storage replicated across all nodes at `/data/storage/`.
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Choose your node type:
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- **Full node** - Contributes storage, becomes lighthouse, read/write access
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- **Remote node** - Full read/write access, no local storage contribution
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Storage mounted at `/data/storage/` on all nodes.
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@ -142,13 +142,20 @@ create_cluster() {
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exit 1
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fi
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# Ask if this node should be a lighthouse
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read -p "Should this node be a lighthouse? [Y/n]: " is_lighthouse
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is_lighthouse=${is_lighthouse:-Y}
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if [[ "$is_lighthouse" =~ ^[Yy] ]]; then
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am_lighthouse="true"
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else
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# Ask about node type
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echo -e "${YELLOW}Select node type:${NC}"
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echo " 1) Full node (contributes storage, lighthouse, read/write)"
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echo " 2) Remote node (no storage contribution, not lighthouse)"
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read -p "Enter choice [1-2]: " node_type
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if [ "$node_type" = "2" ]; then
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is_remote="true"
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am_lighthouse="false"
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echo -e "${YELLOW}Configuring as remote node (no storage contribution)${NC}"
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else
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is_remote="false"
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am_lighthouse="true"
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echo -e "${YELLOW}Configuring as full node${NC}"
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fi
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# Generate Nebula CA
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@ -269,13 +276,20 @@ join_cluster() {
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nebula_port=$(echo "$cluster_secret" | cut -d: -f2)
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ca_cert_b64=$(echo "$cluster_secret" | cut -d: -f3-)
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# Ask if this node should be a lighthouse
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read -p "Should this node be a lighthouse? [Y/n]: " is_lighthouse
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is_lighthouse=${is_lighthouse:-Y}
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if [[ "$is_lighthouse" =~ ^[Yy] ]]; then
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am_lighthouse="true"
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else
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# Ask about node type
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echo -e "${YELLOW}Select node type:${NC}"
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echo " 1) Full node (contributes storage, lighthouse, read/write)"
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echo " 2) Remote node (no storage contribution, not lighthouse)"
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read -p "Enter choice [1-2]: " node_type
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if [ "$node_type" = "2" ]; then
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is_remote="true"
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am_lighthouse="false"
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echo -e "${YELLOW}Configuring as remote node (no storage contribution)${NC}"
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else
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is_remote="false"
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am_lighthouse="true"
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echo -e "${YELLOW}Configuring as full node${NC}"
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fi
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echo -e "${YELLOW}[+] Configuring Nebula (IP: ${my_ip})...${NC}"
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@ -367,8 +381,21 @@ EOF
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# Register with cluster
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echo "${my_ip} ${hostname} $(date)" >> "${NEBULA_CONFIG}/cluster-registry.txt"
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# Join GlusterFS cluster
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echo -e "${YELLOW}[+] Joining GlusterFS cluster...${NC}"
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# Handle GlusterFS setup based on node type
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if [ "$is_remote" = "true" ]; then
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# Remote node - just mount, don't contribute storage
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echo -e "${YELLOW}[+] Mounting GlusterFS...${NC}"
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# Mount the volume with full read/write access
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mount -t glusterfs 192.168.100.1:/${GLUSTER_VOLUME} ${GLUSTER_MOUNT_PATH}
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# Add to fstab
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grep -q "${GLUSTER_VOLUME}" /etc/fstab || echo "192.168.100.1:/${GLUSTER_VOLUME} ${GLUSTER_MOUNT_PATH} glusterfs defaults,_netdev 0 0" >> /etc/fstab
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echo -e "${GREEN}Remote node configured - full access to cluster storage without contributing local storage${NC}"
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else
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# Full node - full participation
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echo -e "${YELLOW}[+] Joining GlusterFS cluster as full node...${NC}"
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# Try to probe existing nodes
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echo -e "${YELLOW}[+] Looking for existing GlusterFS peers...${NC}"
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@ -396,12 +423,16 @@ EOF
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# Add to fstab
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grep -q "${GLUSTER_VOLUME}" /etc/fstab || echo "192.168.100.1:/${GLUSTER_VOLUME} ${GLUSTER_MOUNT_PATH} glusterfs defaults,_netdev 0 0" >> /etc/fstab
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echo -e "${GREEN}Full node configured - contributing storage to cluster${NC}"
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fi
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echo -e "\n${GREEN}════════════════════════════════════════${NC}"
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echo -e "${GREEN}Successfully joined cluster!${NC}"
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echo -e "${GREEN}════════════════════════════════════════${NC}\n"
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echo -e "${YELLOW}Node details:${NC}"
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echo " - Nebula IP: ${my_ip}"
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echo " - Hostname: ${hostname}"
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echo " - Node type: $([ "$is_remote" = "true" ] && echo "Remote (no storage)" || echo "Full (contributes storage)")"
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echo " - GlusterFS mounted at: ${GLUSTER_MOUNT_PATH}"
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}
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