97 lines
5.6 KiB
Bash
Executable File
97 lines
5.6 KiB
Bash
Executable File
#!/bin/bash
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# ==============================================================================================
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# ================================= CONFIGURATION LOADER =======================================
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# ==============================================================================================
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# Single entry point for all configuration sourcing across the ecosystem.
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# Every script sources this file instead of sourcing master.conf files directly.
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#
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# ── HOW IT WORKS ──────────────────────────────────────────────────────────────────────────────
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# 1. Sources master.conf (shared config — hostnames, thresholds, toggles, profiles, job lists)
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# 2. Auto-discovers and sources all host*.conf files in the same directory
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# Each host conf extends the shared profile arrays and adds host-specific credentials
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# 3. Sources common.sh (shared functions — detect_hosts, logging, notifications etc.)
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#
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# ── WHY THIS EXISTS ───────────────────────────────────────────────────────────────────────────
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# Without this loader every script had to explicitly source each conf file:
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# source master.conf
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# source host1.conf
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# source host2.conf
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# source common.sh
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#
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# Adding a new server meant updating every script.
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# With this loader — add host3.conf to the git repo and every server
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# auto-discovers it on next git pull. Zero script changes required. Ever.
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#
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# ── ADDING A NEW SERVER ───────────────────────────────────────────────────────────────────────
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# 1. Create Configurations/host3.conf following the same structure as HOST1/HOST2
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# 2. Commit and push to git repo
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# 3. All servers pull it automatically — no other changes needed
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#
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# ── USAGE IN SCRIPTS ──────────────────────────────────────────────────────────────────────────
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# Replace the three source lines at the top of every script with:
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#
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# SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# source "$SCRIPT_DIR/../load_config.sh"
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#
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# Scripts in subdirectories (Rsync/, Docker_Essentials/ etc.) use ../ to reach root.
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# Scripts in root directory use ./ instead:
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#
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# SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# source "$SCRIPT_DIR/load_config.sh"
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#
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# ── SPARSE CHECKOUT NOTE ──────────────────────────────────────────────────────────────────────
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# Sparse checkout controls which host*.conf files each server receives.
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# HOST1 only pulls Configurations/host1.conf — never HOST2's credentials.
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# HOST2 only pulls Configurations/host2.conf — never HOST1's credentials.
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# This loader sources whatever conf files ARE present — sparse checkout handles the rest.
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# Both servers pull all non-credential conf files (Configurations/master.conf, common.sh, load_config.sh).
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#
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# ==============================================================================================
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# ━━━ Locate config root ━━━
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# load_config.sh always lives in the repo root.
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# Scripts call it from subdirectories using ../ — resolve to the actual root.
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LOAD_CONFIG_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# ━━━ Source shared config ━━━
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# master.conf must be sourced first — it declares the shared PROFILE_* arrays
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# that Host confs extend. Sourcing host confs before master.conf would fail.
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if [[ ! -f "$LOAD_CONFIG_DIR/Configurations/master.conf" ]]; then
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echo "[FATAL] master.conf not found at $LOAD_CONFIG_DIR/Configurations/master.conf" >&2
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echo "[FATAL] Check TARGET_DIR and git pull status" >&2
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exit 1
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fi
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source "$LOAD_CONFIG_DIR/Configurations/master.conf"
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# ━━━ Auto-discover and source all host*.conf files ━━━
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# Sorted for consistent load order — HOST1 before HOST2 before HOST3 etc.
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# Each host conf extends the shared PROFILE_* arrays and adds host-specific vars.
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# Missing files are silently skipped — sparse checkout intentionally withholds some.
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# At least one host conf must be present or the ecosystem has no identity to work with.
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_host_confs_loaded=0
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# Use a sorted array glob — avoids word-splitting on paths with spaces
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while IFS= read -r _conf; do
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[[ -f "$_conf" ]] || continue
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source "$_conf"
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(( _host_confs_loaded++ ))
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[[ "${ENABLE_LOGGING:-false}" == "true" ]] && \
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echo "[LOG] Loaded host config: $(basename "$_conf")" >&2
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done < <(printf '%s\n' "$LOAD_CONFIG_DIR/Configurations"/host*.conf 2>/dev/null | sort)
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if [[ "$_host_confs_loaded" -eq 0 ]]; then
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echo "[FATAL] No host*.conf files found in $LOAD_CONFIG_DIR" >&2
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echo "[FATAL] At least one host conf required — check git pull and sparse checkout" >&2
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exit 1
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fi
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# ━━━ Source shared functions ━━━
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# common.sh sourced last — it calls detect_hosts() which needs HOST* vars to be set.
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if [[ ! -f "$LOAD_CONFIG_DIR/common.sh" ]]; then
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echo "[FATAL] common.sh not found at $LOAD_CONFIG_DIR/common.sh" >&2
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exit 1
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fi
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source "$LOAD_CONFIG_DIR/common.sh"
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# ━━━ Cleanup ━━━
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unset _conf _host_confs_loaded LOAD_CONFIG_DIR |