bitcoin-knots: convert to a role, de-Uptime-Kuma the health check
892-line playbook becomes 40 lines plus a role with install/build/configure/
service/healthcheck phases, five templates and one handler. bitcoin_knots_vars.yml
is deleted; its content is the role's defaults.
Verified after a real run: bitcoind still active since 2026-08-19 (NO restart),
chain at 966844 blocks / 875 GB, DATUM config intact, dbcache still 200, health
check timer firing again. changed=3, all health-check. vipy changed=0.
⚠ THE BIG ONE: the playbook would have deleted the mining integration.
bitcoin.conf on the node carries a section that was hand-added and was missing
from the template entirely:
blockmaxsize=3985000
blockmaxweight=3985000
blocknotify=killall -USR1 datum_gateway
maxmempool=1000
blockreconstructionextratxn=1000000
blocknotify is how datum_gateway learns a new block landed. Running the old
playbook would have stripped all of it and solo mining would have carried on
against a stale template - a silent failure that costs money rather than raising
an error. Also dbcache 200 -> 3528 (hand-tuned down; the calculation wants 90% of
RAM) and logging moved off the file. All now reconciled, dbcache behind
bitcoin_dbcache_mb_override.
bitcoin-knots and datum-gateway are ONE SYSTEM. Noted in the README.
AND MY OWN FIX MADE IT MORE DANGEROUS. The `Restart bitcoind` handler was guarded
by uptime_kuma_enabled, so it had been inert: bitcoin.conf and the systemd unit
both notify it and neither could restart anything - a config change applied to
disk, reported success, and never took effect. Ungating that is right, but it
converts "wrong config sitting inertly on disk" into "node restarted onto a
config that breaks mining". The ungating had to land WITH the template
reconciliation, not before it.
It also raises the bar permanently: any residual template/live difference now
restarts a Bitcoin node on every run. Four rounds of --check --diff to reach
changed=0 - the DATUM section, an explanatory comment that was rendering into the
deployed config (now a {# #} Jinja comment), a "# Pruning (optional)" comment the
live file had, and one trailing blank line.
The build path is 32 tasks all guarded by `not bitcoind_binary_exists.stat.exists`,
so a converged host skips the 30-60 minute compile and both `state: absent`
deletions. Those target /opt/bitcoin-knots/{source,bitcoin-<version>}; the chain
is in /mnt/knots_data and is never touched. Signature-verification tasks copied
verbatim.
The health check timer had last fired 2026-08-09 while reporting active/enabled -
same OnBootSec + OnUnitActiveSec dead chain as fulcrum. The role runs the check
once after enabling to supply the reference the timer schedules from.
Ownership parity checked mechanically against `git show HEAD:`, keyed by TASK
NAME rather than path - keying by path gave a false positive, because
bitcoin_knots_source_dir is created with ownership and later removed with
state: absent, so whichever task comes last wins and that differs between one
file and five. 13/13 match.
bitcoin_p2p_port and the tailscale hostname moved to services_config.yml for the
socket-proxy play on the edge host.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 18:13:40 +02:00
|
|
|
# Bitcoin Knots Configuration Variables
|
|
|
|
|
|
|
|
|
|
# Version - REQUIRED: Specify exact version/tag to build
|
ansible: delete the duplicated vars files, move globals to group_vars/all
Three files existed only as second copies of things group_vars/all already
auto-loads, and 34 playbooks named them in vars_files: - which outranks
group_vars, so the copies won. The day someone edited one and not the other,
those plays would silently keep the stale value. infra_vars.yml was already
drifting: group_vars/all/main.yml had grown age_backup_recipient and
backup_pull_public_key that it lacked.
infra_vars.yml - a strict subset of group_vars/all/main.yml
infra_secrets.yml - decrypts byte-identical to group_vars/all/vault.yml
infra_secrets.yml.example - documented Uptime Kuma credentials as the reason
the file exists, which stopped being true
Deleted, along with 62 vars_files entries across 34 playbooks (12 of which
named ../../group_vars/all/main.yml directly - same defect, a vars_files entry
duplicating an auto-loaded file at higher precedence than the file itself).
Checked before touching anything: infra_secrets.yml was listed LAST in 10 plays,
after services_config.yml, so removal would flip precedence if the two shared a
key. They share none, and neither does services_config.yml with
group_vars/all/main.yml, so the removal is provably inert.
services_config.yml was the last one standing. It held four unrelated things:
caddy_sites_dir - an identical copy of roles/caddy_site/defaults/.
Deleted; the role default is now the only one.
*.tailscale_hostname (x3) - a THIRD copy of each box's identity, which
inventory.ini already holds as ansible_host.
Deleted. Edge plays now read
hostvars['<host>'].ansible_host - verified an
edge play resolves that with nothing loaded and
the other host in no play. Three copies of one
name is how bitcoin_rpc_host ended up labelled
"knots_box" while pointing at fulcrum-box.
subdomains, ntfy topic, - genuinely global: their readers span managed,
headscale namespace monitoring, vpn_control and edge, so no single
group covers them. Moved to group_vars/all/main.yml
where they auto-load. The ntfy_topic and
headscale_namespace indirection through
service_settings collapses to the global name.
the four cross-host ports - the only entries with a real justification.
Left in place; they move in the next commit.
Also dead, all Uptime Kuma residue or duplication:
phoenixd_monitor_name, forgejo_runner healthcheck_timeout_seconds/retries,
fulcrum_tailscale_hostname, and bitcoin_knots_version - the last being a
v-prefixed copy of bitcoin_knots_version_short that nothing read, two
hand-maintained copies of one version string.
Corrected a false comment: services_config.yml claimed the uptime_kuma subdomain
"no longer resolves to anything". It resolves to 164.92.239.72 and answers HTTP
302, and 11 playbooks still template it. Same wrong premise as PLAN_3.
Verification: all 37 playbooks' --list-tasks output is byte-identical before and
after. A probe resolving all 22 values services_config.yml used to supply returns
21 identical and one intended deletion (caddy_sites_dir, now role-only - confirmed
the role still resolves it: "Ensure Caddy sites-enabled directory exists" comes
back ok against the real path). memos check-diff identical before and after.
Syntax passes on every playbook.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 20:58:46 +02:00
|
|
|
# The only version string. There used to be a second, v-prefixed copy
|
|
|
|
|
# (bitcoin_knots_version) that nothing read - two hand-maintained copies of one
|
|
|
|
|
# fact, with nothing keeping them in step.
|
|
|
|
|
bitcoin_knots_version_short: "29.2.knots20251110"
|
bitcoin-knots: convert to a role, de-Uptime-Kuma the health check
892-line playbook becomes 40 lines plus a role with install/build/configure/
service/healthcheck phases, five templates and one handler. bitcoin_knots_vars.yml
is deleted; its content is the role's defaults.
Verified after a real run: bitcoind still active since 2026-08-19 (NO restart),
chain at 966844 blocks / 875 GB, DATUM config intact, dbcache still 200, health
check timer firing again. changed=3, all health-check. vipy changed=0.
⚠ THE BIG ONE: the playbook would have deleted the mining integration.
bitcoin.conf on the node carries a section that was hand-added and was missing
from the template entirely:
blockmaxsize=3985000
blockmaxweight=3985000
blocknotify=killall -USR1 datum_gateway
maxmempool=1000
blockreconstructionextratxn=1000000
blocknotify is how datum_gateway learns a new block landed. Running the old
playbook would have stripped all of it and solo mining would have carried on
against a stale template - a silent failure that costs money rather than raising
an error. Also dbcache 200 -> 3528 (hand-tuned down; the calculation wants 90% of
RAM) and logging moved off the file. All now reconciled, dbcache behind
bitcoin_dbcache_mb_override.
bitcoin-knots and datum-gateway are ONE SYSTEM. Noted in the README.
AND MY OWN FIX MADE IT MORE DANGEROUS. The `Restart bitcoind` handler was guarded
by uptime_kuma_enabled, so it had been inert: bitcoin.conf and the systemd unit
both notify it and neither could restart anything - a config change applied to
disk, reported success, and never took effect. Ungating that is right, but it
converts "wrong config sitting inertly on disk" into "node restarted onto a
config that breaks mining". The ungating had to land WITH the template
reconciliation, not before it.
It also raises the bar permanently: any residual template/live difference now
restarts a Bitcoin node on every run. Four rounds of --check --diff to reach
changed=0 - the DATUM section, an explanatory comment that was rendering into the
deployed config (now a {# #} Jinja comment), a "# Pruning (optional)" comment the
live file had, and one trailing blank line.
The build path is 32 tasks all guarded by `not bitcoind_binary_exists.stat.exists`,
so a converged host skips the 30-60 minute compile and both `state: absent`
deletions. Those target /opt/bitcoin-knots/{source,bitcoin-<version>}; the chain
is in /mnt/knots_data and is never touched. Signature-verification tasks copied
verbatim.
The health check timer had last fired 2026-08-09 while reporting active/enabled -
same OnBootSec + OnUnitActiveSec dead chain as fulcrum. The role runs the check
once after enabling to supply the reference the timer schedules from.
Ownership parity checked mechanically against `git show HEAD:`, keyed by TASK
NAME rather than path - keying by path gave a false positive, because
bitcoin_knots_source_dir is created with ownership and later removed with
state: absent, so whichever task comes last wins and that differs between one
file and five. 13/13 match.
bitcoin_p2p_port and the tailscale hostname moved to services_config.yml for the
socket-proxy play on the edge host.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 18:13:40 +02:00
|
|
|
|
|
|
|
|
# Directories
|
|
|
|
|
bitcoin_knots_dir: /opt/bitcoin-knots
|
|
|
|
|
bitcoin_knots_source_dir: "{{ bitcoin_knots_dir }}/source"
|
|
|
|
|
bitcoin_data_dir: /var/lib/bitcoin # Standard location for config, logs, wallets
|
|
|
|
|
bitcoin_large_data_dir: /mnt/knots_data # Custom location for blockchain data (blocks, chainstate)
|
|
|
|
|
bitcoin_conf_dir: /etc/bitcoin
|
|
|
|
|
|
|
|
|
|
# Network
|
|
|
|
|
bitcoin_rpc_port: 8332
|
ansible: move the cross-host ports to host_vars, delete services_config.yml
The four ports were the only entries in services_config.yml with a real
justification: each is read twice, by the role that deploys the service on its
own box AND by a socket-proxy or Caddy play that runs on the EDGE host and
publishes it. A role default is invisible to that second play.
But the shape was wrong in two ways. The file had to be named in vars_files: by
30 plays - opt-in configuration that someone will eventually forget - and five
role defaults silently interpolated service_settings.*, so bitcoin_knots,
fulcrum, datum_gateway and mempool were not self-contained: using any of them
without that one vars_file entry broke it.
Each port now lives in host_vars/<owning box>/main.yml:
host_vars/knots_box_local/main.yml bitcoin_p2p_port, datum_gateway_api_port,
datum_gateway_stratum_port
host_vars/fulcrum_box_local/main.yml fulcrum_ssl_port
host_vars/mempool_box_local/main.yml mempool_frontend_port
host_vars auto-loads and outranks role defaults, so the owning role picks the
value up with no vars_files at all, and the edge play reads the same single
definition as hostvars['<host>'].<name>. The role defaults keep the protocol
standard (8333, 50002, ...) so each role still works standalone, with the live
deployment's value in host_vars winning.
Also fixed a fourth copy of an inventory identity: the mempool Caddy play had
"mempool-box:{{ ... }}" hardcoded in the upstream. It now derives the host from
hostvars['mempool_box_local'].ansible_host, so inventory is the only place any
box's name is written down.
services_config.yml is deleted, with 25 more vars_files entries across 19
playbooks. Between this and the previous commit, 87 vars_files entries are gone
and every variable in the repo now comes from group_vars/all, host_vars,
inventory, a role default, or that service's own *_vars.yml.
Verification: an edge-host probe resolves all eight ports and hostnames to
byte-identical values to the ones services_config.yml used to supply. Each
owning host resolves its own port through host_vars. All 37 playbooks'
--list-tasks output is unchanged. The four edge plays that consume these values
all check-diff changed=0 - the socket-proxy and Caddy units on vipy are
byte-identical, which is the direct proof the rewiring landed on the same
values. fulcrum and datum-gateway check-diff exactly as before (ok=28/changed=1
and ok=15/changed=1, both the known timer re-arm).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 21:02:57 +02:00
|
|
|
# The edge host's socket-proxy/Caddy play needs this too, and a role default is
|
|
|
|
|
# invisible outside this role. The authoritative value for the live deployment is
|
|
|
|
|
# in host_vars/knots_box_local/main.yml, which outranks this; the value here is the
|
|
|
|
|
# protocol standard, so the role still works standalone.
|
|
|
|
|
bitcoin_p2p_port: 8333
|
bitcoin-knots: convert to a role, de-Uptime-Kuma the health check
892-line playbook becomes 40 lines plus a role with install/build/configure/
service/healthcheck phases, five templates and one handler. bitcoin_knots_vars.yml
is deleted; its content is the role's defaults.
Verified after a real run: bitcoind still active since 2026-08-19 (NO restart),
chain at 966844 blocks / 875 GB, DATUM config intact, dbcache still 200, health
check timer firing again. changed=3, all health-check. vipy changed=0.
⚠ THE BIG ONE: the playbook would have deleted the mining integration.
bitcoin.conf on the node carries a section that was hand-added and was missing
from the template entirely:
blockmaxsize=3985000
blockmaxweight=3985000
blocknotify=killall -USR1 datum_gateway
maxmempool=1000
blockreconstructionextratxn=1000000
blocknotify is how datum_gateway learns a new block landed. Running the old
playbook would have stripped all of it and solo mining would have carried on
against a stale template - a silent failure that costs money rather than raising
an error. Also dbcache 200 -> 3528 (hand-tuned down; the calculation wants 90% of
RAM) and logging moved off the file. All now reconciled, dbcache behind
bitcoin_dbcache_mb_override.
bitcoin-knots and datum-gateway are ONE SYSTEM. Noted in the README.
AND MY OWN FIX MADE IT MORE DANGEROUS. The `Restart bitcoind` handler was guarded
by uptime_kuma_enabled, so it had been inert: bitcoin.conf and the systemd unit
both notify it and neither could restart anything - a config change applied to
disk, reported success, and never took effect. Ungating that is right, but it
converts "wrong config sitting inertly on disk" into "node restarted onto a
config that breaks mining". The ungating had to land WITH the template
reconciliation, not before it.
It also raises the bar permanently: any residual template/live difference now
restarts a Bitcoin node on every run. Four rounds of --check --diff to reach
changed=0 - the DATUM section, an explanatory comment that was rendering into the
deployed config (now a {# #} Jinja comment), a "# Pruning (optional)" comment the
live file had, and one trailing blank line.
The build path is 32 tasks all guarded by `not bitcoind_binary_exists.stat.exists`,
so a converged host skips the 30-60 minute compile and both `state: absent`
deletions. Those target /opt/bitcoin-knots/{source,bitcoin-<version>}; the chain
is in /mnt/knots_data and is never touched. Signature-verification tasks copied
verbatim.
The health check timer had last fired 2026-08-09 while reporting active/enabled -
same OnBootSec + OnUnitActiveSec dead chain as fulcrum. The role runs the check
once after enabling to supply the reference the timer schedules from.
Ownership parity checked mechanically against `git show HEAD:`, keyed by TASK
NAME rather than path - keying by path gave a false positive, because
bitcoin_knots_source_dir is created with ownership and later removed with
state: absent, so whichever task comes last wins and that differs between one
file and five. 13/13 match.
bitcoin_p2p_port and the tailscale hostname moved to services_config.yml for the
socket-proxy play on the edge host.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 18:13:40 +02:00
|
|
|
bitcoin_rpc_bind: "0.0.0.0"
|
|
|
|
|
|
|
|
|
|
# Build options
|
|
|
|
|
bitcoin_build_jobs: 4 # Parallel build jobs (-j flag), adjust based on CPU cores
|
|
|
|
|
bitcoin_build_prefix: /usr/local
|
|
|
|
|
|
|
|
|
|
# Configuration options
|
|
|
|
|
bitcoin_enable_txindex: true # Set to true if transaction index needed (REQUIRED for Electrum servers like Electrs/ElectrumX)
|
|
|
|
|
bitcoin_max_connections: 125
|
|
|
|
|
# dbcache will be calculated as 90% of host RAM automatically in playbook
|
|
|
|
|
|
|
|
|
|
# ZMQ Configuration
|
|
|
|
|
bitcoin_zmq_enabled: true
|
|
|
|
|
bitcoin_zmq_bind: "tcp://0.0.0.0"
|
|
|
|
|
bitcoin_zmq_port_rawblock: 28332
|
|
|
|
|
bitcoin_zmq_port_rawtx: 28333
|
|
|
|
|
bitcoin_zmq_port_hashblock: 28334
|
|
|
|
|
bitcoin_zmq_port_hashtx: 28335
|
|
|
|
|
|
|
|
|
|
# Service user
|
|
|
|
|
bitcoin_user: bitcoin
|
|
|
|
|
bitcoin_group: bitcoin
|
|
|
|
|
|
|
|
|
|
# --- Health check ----------------------------------------------------------
|
|
|
|
|
# Checks bitcoind RPC and records the answer in its exit code, which systemd
|
|
|
|
|
# keeps: `systemctl is-failed bitcoin-knots-healthcheck.service`.
|
|
|
|
|
#
|
|
|
|
|
# WHERE TO REPORT HEALTH — the one place to plug in monitoring. Empty means
|
|
|
|
|
# check, exit honestly, report nowhere. Any endpoint accepting an HTTP ping
|
|
|
|
|
# works; nothing here is specific to a monitoring product.
|
|
|
|
|
healthcheck_push_url: ""
|
uptime kuma: remove every live reference, repoint the probes to Gatus
Nothing in the repo pushes to, authenticates against, or is gated by Uptime
Kuma any more.
── The sixth instance of the banner bug ────────────────────────────────────
memos had `Restart memos` guarded by `uptime_kuma_enabled`, because the
deprecation banner was placed immediately above it and swept it in. It is a
HANDLER, so every memos config change since 2026-09-11 applied to disk and
silently never restarted the service. Ungated.
That is the same failure found in forgejo-runner's self-assert, phoenixd's timer
enable, mempool's three timer enables, fulcrum's restart handler and bitcoind's
restart handler. Every guard was read and asked "monitoring or deployment?"
before being deleted, which is the only reason this was caught.
── What was removed ────────────────────────────────────────────────────────
30 uptime_kuma_enabled guards across 7 unconverted service playbooks, and
the 29 Kuma monitor-creation tasks they gated (embedded Python that drove
the Kuma API, temp credential files, cleanup)
7 dead uptime_kuma_api_url definitions
7 stale DEPRECATED banners
uptime_kuma_enabled and subdomains.uptime_kuma from group_vars/all
healthcheck_push_urls from the vault - 30 push tokens
services/ntfy/setup_ntfy_uptime_kuma_notification.yml -> archive/
The explanatory comments in the six converted roles are KEPT on purpose. They
record why a handler is ungated, and deleting the explanation invites someone
to helpfully re-add the guard.
── The probes moved rather than died ───────────────────────────────────────
Eight per-service health checks were still pushing to Kuma. They are not
superseded by infra/401: that answers "is the unit running", these answer "does
the service actually respond" - an RPC call to bitcoind, a TCP connect to
Fulcrum's Electrum port, an HTTP fetch from Mempool's backend. A process can be
perfectly `active` and useless.
So they were repointed, not deleted. Gatus external endpoints take a POST with
a bearer token and success=true|false where Kuma took a GET with ?status=up, so
report() now maps up/down to true/false internally and no call site changed.
Registered by infra/403 as the `probe` group, one token per host.
Two bugs fixed while in there:
* forgejo-runner's check only ever reported SUCCESS - it exited before pushing
when the runner was down, so a failure was invisible until the heartbeat
window expired. Reporting the failure is the entire point of a check.
* All six healthcheck .service units were mode 0644 and now carry a bearer
token. They are 0600.
Verified: 91 endpoints, 91 UP, 0 DOWN. Every probe triggered by hand and
confirmed arriving. Zero Kuma URLs left in the vault, zero live references in
any playbook or role.
Still standing, deliberately: the Kuma container on watchtower, its Caddy vhost,
and the uptime.contrapeso.xyz DNS record. Turning the service off is a separate
decision from removing the code that talked to it.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-14 10:30:28 +02:00
|
|
|
# Bearer token for the Gatus external endpoint. Required whenever a push URL
|
|
|
|
|
# is set: Gatus rejects an unauthenticated push with 401.
|
|
|
|
|
healthcheck_push_token: ""
|
bitcoin-knots: convert to a role, de-Uptime-Kuma the health check
892-line playbook becomes 40 lines plus a role with install/build/configure/
service/healthcheck phases, five templates and one handler. bitcoin_knots_vars.yml
is deleted; its content is the role's defaults.
Verified after a real run: bitcoind still active since 2026-08-19 (NO restart),
chain at 966844 blocks / 875 GB, DATUM config intact, dbcache still 200, health
check timer firing again. changed=3, all health-check. vipy changed=0.
⚠ THE BIG ONE: the playbook would have deleted the mining integration.
bitcoin.conf on the node carries a section that was hand-added and was missing
from the template entirely:
blockmaxsize=3985000
blockmaxweight=3985000
blocknotify=killall -USR1 datum_gateway
maxmempool=1000
blockreconstructionextratxn=1000000
blocknotify is how datum_gateway learns a new block landed. Running the old
playbook would have stripped all of it and solo mining would have carried on
against a stale template - a silent failure that costs money rather than raising
an error. Also dbcache 200 -> 3528 (hand-tuned down; the calculation wants 90% of
RAM) and logging moved off the file. All now reconciled, dbcache behind
bitcoin_dbcache_mb_override.
bitcoin-knots and datum-gateway are ONE SYSTEM. Noted in the README.
AND MY OWN FIX MADE IT MORE DANGEROUS. The `Restart bitcoind` handler was guarded
by uptime_kuma_enabled, so it had been inert: bitcoin.conf and the systemd unit
both notify it and neither could restart anything - a config change applied to
disk, reported success, and never took effect. Ungating that is right, but it
converts "wrong config sitting inertly on disk" into "node restarted onto a
config that breaks mining". The ungating had to land WITH the template
reconciliation, not before it.
It also raises the bar permanently: any residual template/live difference now
restarts a Bitcoin node on every run. Four rounds of --check --diff to reach
changed=0 - the DATUM section, an explanatory comment that was rendering into the
deployed config (now a {# #} Jinja comment), a "# Pruning (optional)" comment the
live file had, and one trailing blank line.
The build path is 32 tasks all guarded by `not bitcoind_binary_exists.stat.exists`,
so a converged host skips the 30-60 minute compile and both `state: absent`
deletions. Those target /opt/bitcoin-knots/{source,bitcoin-<version>}; the chain
is in /mnt/knots_data and is never touched. Signature-verification tasks copied
verbatim.
The health check timer had last fired 2026-08-09 while reporting active/enabled -
same OnBootSec + OnUnitActiveSec dead chain as fulcrum. The role runs the check
once after enabling to supply the reference the timer schedules from.
Ownership parity checked mechanically against `git show HEAD:`, keyed by TASK
NAME rather than path - keying by path gave a false positive, because
bitcoin_knots_source_dir is created with ownership and later removed with
state: absent, so whichever task comes last wins and that differs between one
file and five. 13/13 match.
bitcoin_p2p_port and the tailscale hostname moved to services_config.yml for the
socket-proxy play on the edge host.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-13 18:13:40 +02:00
|
|
|
|
|
|
|
|
# --- Logging ----------------------------------------------------------------
|
|
|
|
|
# The live node logs to a file. Set to "" to use printtoconsole=1 (journald).
|
|
|
|
|
bitcoin_logfile: "{{ bitcoin_data_dir }}/debug.log"
|
|
|
|
|
|
|
|
|
|
# --- dbcache ----------------------------------------------------------------
|
|
|
|
|
# Computed as 90% of RAM unless this is set. The live node was hand-tuned to
|
|
|
|
|
# 200 MB; the calculation would have produced 3528. As with fulcrum, note that
|
|
|
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# set_fact outranks role defaults, so the CALCULATION has to honour this - a
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# value pinned only in defaults/ is silently ignored.
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bitcoin_dbcache_mb_override: 200
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# --- DATUM Gateway ----------------------------------------------------------
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# This node feeds block templates to datum_gateway on knots-box. These settings
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# were hand-added to bitcoin.conf and were missing from the template, so a
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# playbook run would have removed them and broken the mining setup.
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bitcoin_datum_gateway_enabled: true
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bitcoin_blockmaxsize: 3985000
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bitcoin_blockmaxweight: 3985000
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bitcoin_blocknotify: "killall -USR1 datum_gateway"
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bitcoin_maxmempool: 1000
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bitcoin_blockreconstructionextratxn: 1000000
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