test0r
490e688cc1
One lmcp server on a central host (typically hertz) that proxies
remote_* tools to every backend in a registry, with a clean SSH
fallback for hosts whose lmcp is temporarily down or not installed.
Tools: remote_list_hosts, remote_{shell,read_file,write_file,edit_file,
list_dir,search_files}. Each takes a `host` argument naming the target
in /opt/herding/etc/hub-backends.conf (or $LMCP_HUB_BACKENDS).
Lazy 30s health cache; `remote_list_hosts force=true` bypasses it.
Bearer auth on inbound (standard lmcp opts.conf / LMCP_TOKEN machinery);
backend Bearer tokens kept in the registry and forwarded per-call.
SSH fallback uses `ssh host 'bash -s' < local_script` — stdin-piped
script body is the canonical shell-escape-free technique. Covers
shell/read_file/write_file/list_dir/search_files. edit_file is lmcp-only
because the literal-match + uniqueness check is nontrivial to replicate
safely in shell.
Ships an example systemd unit and a commented backends.conf template
in examples/. No migration required for existing lmcp deployments —
hub.lua is additive alongside the existing server.lua.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
26 lines
745 B
Desktop File
26 lines
745 B
Desktop File
[Unit]
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Description=lmcp hub — fleet MCP broker
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After=network.target
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Wants=network.target
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[Service]
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Type=simple
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User=mfritsche
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Group=mfritsche
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# When deploying, copy hub.lua to /opt/lmcp/ or adjust the path below.
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ExecStart=/usr/bin/lua5.4 /usr/share/lua/5.4/hub.lua
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Environment=LMCP_NAME=hub-tools
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Environment=LMCP_PORT=8090
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# Backend registry: space-separated "name ssh_host lmcp_url token" per line.
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# See hub-backends.conf.example in this examples/ dir.
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Environment=LMCP_HUB_BACKENDS=/opt/herding/etc/hub-backends.conf
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# Bearer token file (key `.godparticle=<hex>`).
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Environment=LMCP_HUB_CONF=/opt/herding/etc/lmcp-hub.conf
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Restart=on-failure
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RestartSec=5
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StandardOutput=journal
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StandardError=journal
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[Install]
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WantedBy=multi-user.target
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