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023da9c36b
With c-lightning v0.7.0, there seems to be no `short_channel_id`
key present in the input sent to the `prometheus.py` script when
it is is called via the `plugin` config value for c-lightning
when a channel is opened.
Without this change, the script throws `500 Internal Server` error
when doing `$ lightning-cli fundchannel <id> <sats>`.
A sample JSON messages passed to the plugin is:
```
{
'state': 'CHANNELD_AWAITING_LOCKIN',
'scratch_txid': '120ad265b66aa0c4bbb5ff50a23ca85463337fb8b58b395f3811918610686a734',
'owner': 'lightning_channeld',
'channel_id': 'eda784df73aa105d728a0d9fee6ff450eeeac78aa57d3218f7b0dd89b2bd20f1',
'funding_txid': 'f120bdb2eec4b0f718327dc58cc7eaee5dd46fa19f0d8a725d10ff73df84a7ed',
'private': False,
'funding_allocation_msat': {
'03584abd04d69168600ff0ff5d11723d324f2deadbeefcbb84804580e344af235e': 0,
'03a9c46ddacd373f78b6679f9dec6adb10b3ddeadbeef2a685e09b2ce6101bc18c': 100000000
},
'funding_msat': {
'03584abd04d69168600340ad5d11723d324f2deadbeefcbb84804580e344af235e': '0msat',
'03a9c46ddacd373f78b6679f9dec6adb10b3ddeadbeef2a685e09b2ce6101bc18c': '100000000msat'
},
'msatoshi_to_us': 100000000,
'to_us_msat': '100000000msat',
'msatoshi_to_us_min': 100000000,
'min_to_us_msat': '100000000msat',
'msatoshi_to_us_max': 100000000,
'max_to_us_msat': '100000000msat',
'msatoshi_total': 100000000,
'total_msat': '100000000msat',
'dust_limit_satoshis': 546,
'dust_limit_msat': '546000msat',
'max_htlc_value_in_flight_msat': 18446744073709551615,
'max_total_htlc_in_msat': '18446744073709551615msat',
'their_channel_reserve_satoshis': 1000,
'their_reserve_msat': 1000000msat,
'our_channel_reserve_satoshis': 1000,
'our_reserve_msat': '1000000msat',
'spendable_msatoshi': 99000000,
'spendable_msat': '99000000msat',
'htlc_minimum_msat': 0,
'minimum_htlc_in_msat': '0msat',
'their_to_self_delay': 144,
'our_to_self_delay': 144,
'max_accepted_htlcs': 483,
'status': ['CHANNELD_AWAITING_LOCKIN:Reconnected, and reestablished.', 'CHANNELD_AWAITING_LOCKIN:Funding needs more confirmations.'],
'in_payments_offered': 0,
'in_msatoshi_offered': 0,
'in_offered_msat': '0msat',
'in_payments_fulfilled': 0,
'in_msatoshi_fulfilled': 0,
'in_fulfilled_msat': '0msat',
'out_payments_offered': 0,
'out_msatoshi_offered': 0,
'out_offered_msat': '0msat',
'out_payments_fulfilled': 0,
'out_msatoshi_fulfilled': 0,
'out_fulfilled_msat': '0msat',
'htlcs': []
}
```
Prometheus plugin for c-lightning
This plugin exposes some key metrics from c-lightning in the prometheus format so it can be scraped, plotted and alerts can be created on it. The plugin adds the following command line arguments:
prometheus-listen: the IP address and port to bind the HTTP server to (default:0.0.0.0:9900)
Exposed variables include:
node: ID, version, ...peers: whether they are connected, and how many channels are currently openchannels: fund allocations, spendable funds, and how many unresolved HTLCs are currently attached to the channelfunds: satoshis in on-chain outputs, satoshis allocated to channels and total sum (may be inaccurate during channel resolution).