mirror of
https://github.com/mulgadc/spinifex.git
synced 2026-11-01 08:49:44 +00:00
Julian Sommer
273 lines
12 KiB
Bash
Executable File
273 lines
12 KiB
Bash
Executable File
#!/bin/sh
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# setup_host_test.sh — tests for setup.sh's DNS handover to systemd-resolved,
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# its chrony drop-in and its nbdkit plugin directory.
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#
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# setup.sh is sourced with INSTALL_SPINIFEX_LIB_ONLY=1 so main never runs. PATH
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# holds stub commands and links to a few real tools only, so no host resolver,
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# package manager or service is ever touched.
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# shellcheck disable=SC2016 # stub bodies are single-quoted so they expand when the stub runs
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set -eu
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SCRIPT_DIR=$(CDPATH='' cd -- "$(dirname -- "$0")" && pwd)
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SETUP="$SCRIPT_DIR/setup.sh"
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TMP=$(mktemp -d)
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trap 'rm -rf "$TMP"' EXIT
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fails=0
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pass() { echo " ok - $1"; }
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fail() { echo " FAIL - $1"; fails=$((fails + 1)); }
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echo "-- setup.sh host DNS, chrony and nbdkit"
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mkdir -p "$TMP/sys"
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for tool in bash awk sed grep readlink basename dirname cp ln mkdir cat head tail wc tee rm chmod; do
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ln -s "$(command -v "$tool")" "$TMP/sys/$tool"
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done
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# stub <name> <body> — a stub command; $S is the fixture's state directory.
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stub() {
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printf '#!/bin/sh\nS="%s"\n%s\n' "$TMP/state" "$2" > "$TMP/bin/$1"
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chmod +x "$TMP/bin/$1"
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}
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# host — a fresh fixture: resolved installed and inactive, resolvconf the
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# resolvectl link, NetworkManager running with no DNS settings, a dnf host
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# whose first enabled repository is yum.oracle.com.
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host() {
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rm -rf "${TMP:?}/state" "${TMP:?}/root" "${TMP:?}/bin"
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mkdir -p "$TMP/state/active" "$TMP/root/etc" "$TMP/root/usr/lib/systemd/system" "$TMP/bin"
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: > "$TMP/root/usr/lib/systemd/system/systemd-resolved.service"
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: > "$TMP/state/active/NetworkManager.service"
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printf 'nameserver 192.168.1.1\nsearch example.lan\n' > "$TMP/root/etc/resolv.conf"
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printf '[main]\n# dns=default\nconfigure-and-quit=no\n' > "$TMP/state/nm-config"
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printf 'Global:\nLink 2 (br-wan): 192.168.1.1\n' > "$TMP/state/resolvectl-dns"
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printf '[ol10_UEKR8]\nbaseurl = https://mirror.example/uek/\nenabled = 0\n[ol10_baseos_latest]\nbaseurl = https://yum.oracle.com/repo/OracleLinux/OL10/baseos/latest/x86_64/\nenabled = 1\n' > "$TMP/state/dnf-dump"
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stub systemctl '[ "$1" = is-active ] && { [ -e "$S/active/$3" ]; exit; }
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echo "$*" >> "$S/calls"
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[ "$1 $2" = "enable --now" ] && : > "$S/active/$3"
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exit 0'
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stub NetworkManager 'cat "$S/nm-config"'
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stub resolvectl '[ "$1" = dns ] && cat "$S/resolvectl-dns"'
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stub resolvectl-real ':'
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ln -s resolvectl "$TMP/bin/resolvconf"
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stub getent '[ ! -e "$S/getent-fail" ] && echo "$2" >> "$S/looked-up"'
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stub dnf '[ "$1 $2" = "config-manager --dump" ] && cat "$S/dnf-dump"'
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stub sleep ':'
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}
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# run <function...> — runs setup.sh functions against the fixture. Sets RC and OUT.
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run() {
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RC=0
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OUT=$(PATH="$TMP/bin:$TMP/sys" DISTRO_ROOT="$TMP/root" \
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SPINIFEX_RESOLV_CONF="$TMP/root/etc/resolv.conf" SPINIFEX_RESOLV_CONF_SAVED="$TMP/root/saved/resolv.conf.orig" \
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INSTALL_SPINIFEX_LIB_ONLY=1 bash -c '. "$1"; shift; for f in "$@"; do $f; done' _ "$SETUP" "$@" 2>&1) || RC=$?
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}
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calls() { cat "$TMP/state/calls" 2>/dev/null || true; }
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saved() { cat "$TMP/root/saved/resolv.conf.orig" 2>/dev/null || echo "<none>"; }
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expect_untouched() {
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if [ "$RC" = 0 ] && [ -z "$(calls)" ] && [ ! -L "$TMP/root/etc/resolv.conf" ] && [ "$(saved)" = "<none>" ]; then
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pass "$1"
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else
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fail "$1: rc=$RC calls='$(calls)' saved='$(saved)': $OUT"
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fi
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}
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expect_fatal() { # expect_fatal <desc> <text>...
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desc=$1; shift
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if [ "$RC" = 0 ]; then fail "$desc (succeeded): $OUT"; return; fi
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for want in "$@"; do
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case "$OUT" in *"$want"*) ;; *) fail "$desc (output lacks '$want'): $OUT"; return ;; esac
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done
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pass "$desc"
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}
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# --------------------------------------------------------------------------
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# DNS handover.
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# --------------------------------------------------------------------------
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host
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run hand_dns_to_resolved
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if [ "$RC" = 0 ] && [ "$(readlink "$TMP/root/etc/resolv.conf")" = /run/systemd/resolve/stub-resolv.conf ] \
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&& [ "$(saved)" = "$(printf 'nameserver 192.168.1.1\nsearch example.lan')" ] \
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&& [ "$(calls)" = "$(printf 'enable --now systemd-resolved.service\nrestart NetworkManager.service')" ] \
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&& [ "$(cat "$TMP/state/looked-up")" = yum.oracle.com ]; then
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pass "hands DNS to resolved: saves resolv.conf, starts resolved, restarts NM, links the stub, looks up the repo host"
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else
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fail "handover: rc=$RC calls='$(calls)' saved='$(saved)' link='$(readlink "$TMP/root/etc/resolv.conf")': $OUT"
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fi
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: > "$TMP/state/calls"
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rm -f "$TMP/state/looked-up"
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run hand_dns_to_resolved
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if [ "$RC" = 0 ] && [ -z "$(calls)" ] && [ "$(cat "$TMP/state/looked-up")" = yum.oracle.com ]; then
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pass "a rerun after a handover checks DNS again and changes nothing"
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else
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fail "rerun after handover: rc=$RC calls='$(calls)': $OUT"
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fi
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host
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mkdir -p "$TMP/root/saved"
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echo "the original" > "$TMP/root/saved/resolv.conf.orig"
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run hand_dns_to_resolved
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if [ "$RC" = 0 ] && [ "$(saved)" = "the original" ]; then
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pass "a rerun never overwrites the saved resolv.conf"
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else
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fail "saved copy overwritten: rc=$RC saved='$(saved)': $OUT"
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fi
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host
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rm "$TMP/root/usr/lib/systemd/system/systemd-resolved.service"
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run hand_dns_to_resolved
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expect_untouched "resolved not installed: DNS is left alone"
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host
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: > "$TMP/state/active/systemd-resolved.service"
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run hand_dns_to_resolved
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expect_untouched "resolved already active, with no earlier handover: DNS is left alone"
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host
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rm "$TMP/bin/resolvconf"
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stub resolvconf ':'
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run hand_dns_to_resolved
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expect_untouched "a real resolvconf: DNS is left alone"
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host
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rm "$TMP/state/active/NetworkManager.service"
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run hand_dns_to_resolved
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case "$OUT" in
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*"NetworkManager is not running"*) expect_untouched "NetworkManager not running: DNS is left alone, with a warning" ;;
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*) fail "NetworkManager not running: no warning: $OUT" ;;
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esac
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for setting in dns=none dns=dnsmasq systemd-resolved=false; do
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host
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printf '[main]\n# dns=default\n%s\n[logging]\ndns=none\n' "$setting" > "$TMP/state/nm-config"
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run hand_dns_to_resolved
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expect_fatal "NetworkManager $setting stops the install, naming it" "NetworkManager sets $setting"
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[ -z "$(calls)" ] || fail "NetworkManager $setting: acted before refusing: $(calls)"
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done
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host
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printf '[main]\ndns=systemd-resolved\n[logging]\ndns=none\n' > "$TMP/state/nm-config"
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run hand_dns_to_resolved
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[ "$RC" = 0 ] && pass "dns=systemd-resolved, and dns= outside [main], are accepted" || fail "dns=systemd-resolved refused: $OUT"
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host
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printf 'Global:\nLink 2 (br-wan):\n' > "$TMP/state/resolvectl-dns"
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run hand_dns_to_resolved
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expect_fatal "no upstream servers stops the install, naming the check and printing the restore" \
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"'resolvectl dns' lists no DNS servers" "systemctl disable --now systemd-resolved" "cp -a --remove-destination $TMP/root/saved/resolv.conf.orig"
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host
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: > "$TMP/state/getent-fail"
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run hand_dns_to_resolved
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expect_fatal "a repository host that no longer resolves stops the install, naming it" "yum.oracle.com no longer resolves" "systemctl restart NetworkManager"
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host
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printf '[local]\nbaseurl = file:///srv/repo/\nenabled = 1\n' > "$TMP/state/dnf-dump"
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run hand_dns_to_resolved
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case "$RC:$OUT" in
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0:*"not checking that names resolve"*) pass "a file:// repository skips the name check with a warning" ;;
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*) fail "file:// repository: rc=$RC: $OUT" ;;
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esac
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host
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printf '[local]\nbaseurl = http://10.0.0.5/repo/\nenabled = 1\n' > "$TMP/state/dnf-dump"
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run hand_dns_to_resolved
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case "$RC:$OUT" in
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0:*"10.0.0.5 is an IP address"*) pass "a repository at an IP address skips the name check with a warning" ;;
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*) fail "IP repository: rc=$RC: $OUT" ;;
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esac
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# --------------------------------------------------------------------------
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# Repository URLs and their hosts.
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# --------------------------------------------------------------------------
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host
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printf '[a]\nbaseurl = \nenabled = 1\nmirrorlist = https://mirrors.example/list\n[b]\nbaseurl = https://b.example/\nenabled = 1\n' > "$TMP/state/dnf-dump"
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run first_repo_url
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[ "$OUT" = https://mirrors.example/list ] && pass "dnf: a mirrorlist stands in for an empty baseurl" || fail "dnf mirrorlist: '$OUT'"
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printf '[a]\nbaseurl = https://a1.example/, https://a2.example/\nenabled = 1\n' > "$TMP/state/dnf-dump"
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run first_repo_url
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[ "$OUT" = https://a1.example/ ] && pass "dnf: the first of several baseurls" || fail "dnf baseurl list: '$OUT'"
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host
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rm "$TMP/bin/dnf"
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stub apt-get '[ "$1" = indextargets ] && printf "http://deb.debian.org/debian/\nhttp://deb.debian.org/debian-security/\n"'
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run first_repo_url
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[ "$OUT" = http://deb.debian.org/debian/ ] && pass "apt: the first repository URI" || fail "apt: '$OUT'"
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for case in "https://yum.oracle.com/repo/=yum.oracle.com" "http://user@mirror.lan:8080/x=mirror.lan" \
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"http://[2001:db8::1]:80/x=[2001:db8::1]" "file:///srv/repo=" "cdrom:[Debian]/=" "=" ; do
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url=${case%=*}
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want=${case##*=}
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run "url_host $url"
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[ "$OUT" = "$want" ] && pass "url_host '$url' is '$want'" || fail "url_host '$url' = '$OUT', want '$want'"
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done
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# --------------------------------------------------------------------------
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# chrony drop-in.
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# --------------------------------------------------------------------------
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host
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mkdir -p "$TMP/root/etc/chrony"
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printf 'pool 2.debian.pool.ntp.org iburst\nmakestep 1 3\nconfdir /etc/chrony/conf.d\n' > "$TMP/root/etc/chrony/chrony.conf"
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before=$(cat "$TMP/root/etc/chrony/chrony.conf")
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run install_chrony_conf
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if [ "$RC" = 0 ] && grep -qx 'makestep 1 -1' "$TMP/root/etc/chrony/conf.d/spinifex.conf" 2>/dev/null \
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&& [ "$(cat "$TMP/root/etc/chrony/chrony.conf")" = "$before" ]; then
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case "$OUT" in
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*WARN*) fail "Debian chrony layout warned: $OUT" ;;
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*) pass "Debian: the drop-in goes in the confdir, chrony.conf is not edited" ;;
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esac
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else
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fail "Debian chrony: rc=$RC: $OUT"
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fi
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host
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printf 'pool 2.pool.ntp.org iburst\nmakestep 1.0 3\nrtcsync' > "$TMP/root/etc/chrony.conf"
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run install_chrony_conf
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run install_chrony_conf
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if [ "$RC" = 0 ] && grep -qx 'makestep 1 -1' "$TMP/root/etc/chrony.d/spinifex.conf" 2>/dev/null \
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&& [ "$(grep -c '^confdir' "$TMP/root/etc/chrony.conf")" = 1 ] \
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&& [ "$(tail -n 1 "$TMP/root/etc/chrony.conf")" = "confdir /etc/chrony.d" ] \
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&& grep -qx rtcsync "$TMP/root/etc/chrony.conf"; then
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pass "EL: one confdir line is appended after the stock makestep, and the drop-in goes there"
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else
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fail "EL chrony: rc=$RC: $OUT: $(cat "$TMP/root/etc/chrony.conf")"
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fi
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host
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printf 'confdir /etc/chrony.d\nmakestep 1.0 3\n' > "$TMP/root/etc/chrony.conf"
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run install_chrony_conf
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case "$RC:$OUT" in
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0:*"makestep on line 2, after its confdir line"*) pass "a makestep after the confdir line warns that it overrides the drop-in" ;;
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*) fail "late makestep: rc=$RC: $OUT" ;;
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esac
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host
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run install_chrony_conf
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case "$RC:$OUT" in
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0:*"Skipping the chrony drop-in"*) pass "no chrony config: the drop-in is skipped with a warning" ;;
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*) fail "no chrony: rc=$RC: $OUT" ;;
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esac
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# --------------------------------------------------------------------------
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# nbdkit plugin directory.
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# --------------------------------------------------------------------------
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host
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stub nbdkit '[ "$1" = --dump-config ] && printf "binary=/usr/sbin/nbdkit\nplugindir=/usr/lib64/nbdkit/plugins\n"'
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OUT=$(PATH="$TMP/bin:$TMP/sys" INSTALL_SPINIFEX_LIB_ONLY=1 bash -c '. "$1"; resolve_nbdkit_plugindir; echo "DIR=$NBDKIT_PLUGINDIR"' _ "$SETUP" 2>&1) && RC=0 || RC=$?
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[ "$OUT" = DIR=/usr/lib64/nbdkit/plugins ] && pass "the plugin directory comes from nbdkit --dump-config" || fail "nbdkit plugindir: rc=$RC: $OUT"
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host
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stub nbdkit 'exit 1'
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run resolve_nbdkit_plugindir
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expect_fatal "a broken nbdkit stops the install, naming it" "nbdkit --dump-config"
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host
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run resolve_nbdkit_plugindir
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expect_fatal "no nbdkit stops the install, naming it" "nbdkit --dump-config"
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if [ "$fails" -gt 0 ]; then
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echo "$fails failure(s)"
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exit 1
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fi
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