68 lines
2.1 KiB
Bash
68 lines
2.1 KiB
Bash
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#!/usr/bin/env bash
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set -o errexit
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set -o nounset
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set -o pipefail
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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# shellcheck source=00-platform-guard.inc
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source "$SCRIPT_DIR/00-platform-guard.inc"
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JOURNAL_SOURCE="$SCRIPT_DIR/../files/systemd/journald-ailab-limits.conf"
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JOURNAL_DEST="/etc/systemd/journald.conf.d/ailab-limits.conf"
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SYSCTL_SOURCE="$SCRIPT_DIR/../files/sysctl/99-ailab.conf"
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SYSCTL_DEST="/etc/sysctl.d/99-ailab.conf"
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install_config() {
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local source_path="$1"
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local destination_path="$2"
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local mode="$3"
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local backup
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install -d -m 0755 "$(dirname "$destination_path")"
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if [[ -f "$destination_path" ]] && cmp -s "$source_path" "$destination_path"; then
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printf 'OK: %s is already current\n' "$destination_path"
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return 0
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fi
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if [[ -f "$destination_path" ]]; then
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backup="${destination_path}.$(date '+%Y%m%d-%H%M%S').bak"
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install -m "$mode" "$destination_path" "$backup"
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printf 'INFO: backed up %s to %s\n' "$destination_path" "$backup"
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fi
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install -m "$mode" "$source_path" "$destination_path"
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printf 'OK: installed %s\n' "$destination_path"
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}
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if ((EUID != 0)); then
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printf 'CRITICAL: tuning setup must run as root\n' >&2
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exit 2
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fi
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require_supported_ubuntu
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for source_path in "$JOURNAL_SOURCE" "$SYSCTL_SOURCE"; do
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if [[ ! -r "$source_path" ]]; then
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printf 'CRITICAL: required configuration is missing: %s\n' "$source_path" >&2
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exit 2
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fi
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done
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if ! command -v sysctl >/dev/null 2>&1 || ! command -v systemctl >/dev/null 2>&1; then
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printf 'CRITICAL: sysctl and systemctl are required\n' >&2
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exit 2
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fi
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if ! command -v sensors-detect >/dev/null 2>&1 || \
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! systemctl cat sysstat.service >/dev/null 2>&1; then
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apt-get update
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DEBIAN_FRONTEND=noninteractive apt-get install -y lm-sensors sysstat
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fi
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install_config "$JOURNAL_SOURCE" "$JOURNAL_DEST" 0644
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install_config "$SYSCTL_SOURCE" "$SYSCTL_DEST" 0644
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sysctl --system
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systemctl restart systemd-journald
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systemctl enable --now sysstat
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if command -v sensors-detect >/dev/null 2>&1; then
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sensors-detect --auto || printf 'WARNING: sensors-detect did not complete successfully\n'
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fi
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printf 'OK: host tuning completed\n'
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