File 0001-ocf-distro-Improve-robustness-and-specificity-1558.patch of Package resource-agents.27878
From a7396485f9a373fba84ebc31925b1a20fe4b8d70 Mon Sep 17 00:00:00 2001
From: Reid Wahl <30487349+nrwahl2@users.noreply.github.com>
Date: Fri, 27 Nov 2020 03:34:25 -0800
Subject: [PATCH] ocf-distro: Improve robustness and specificity (#1558)
* ocf-distro: Add SUSE check to get_os_ver()
* ocf-distro: Reduce code duplication, functionalize version-get
* ocf-distro: Add is_debian_based() and is_suse_based() functions
* azure-lb: Use is_suse_based() when setting OCF_RESKEY_nc_default
* apache: Use is_suse_based() and is_debian_based()
* ocf-distro: Try os-release first to get release ID
* ocf-distro: Make `uname -s` the final fallback for release ID
* ocf-distro: Normalize OS release IDs in get_release_id()
* ocf-distro: Functionalize getting OS from legacy source
* ocf-distro: Try os-release first to get OS version
* ocf-distro: Functionalize getting OS version from legacy source
* ocf-distro: Functionalize processing of retrieved values
---
heartbeat/apache | 17 ++--
heartbeat/azure-lb | 12 +--
heartbeat/ocf-distro | 220 +++++++++++++++++++++++++++++++++++++------
3 files changed, 206 insertions(+), 43 deletions(-)
diff --git a/heartbeat/apache b/heartbeat/apache
index bc891ed8..b249a46c 100755
--- a/heartbeat/apache
+++ b/heartbeat/apache
@@ -167,16 +167,13 @@ silent_status() {
# May be useful to add other distros in future
validate_default_config() {
- case "$( get_release_id )" in
- *SUSE)
- validate_default_suse_config
- ;;
- Debian)
- validate_default_debian_config
- ;;
- *)
- return 0
- esac
+ if is_suse_based; then
+ validate_default_suse_config
+ elif is_debian_based; then
+ validate_default_debian_config
+ else
+ return 0
+ fi
}
# When using the default /etc/apache2/httpd.conf on SUSE, the file
diff --git a/heartbeat/azure-lb b/heartbeat/azure-lb
index 05c13451..793bcdfb 100755
--- a/heartbeat/azure-lb
+++ b/heartbeat/azure-lb
@@ -17,12 +17,12 @@
. ${OCF_FUNCTIONS_DIR}/ocf-shellfuncs
# Defaults
-OCF_RESKEY_nc_default="/usr/bin/nc"
-case "$( get_release_id )" in
- *SUSE)
- OCF_RESKEY_nc_default="/usr/bin/socat"
- ;;
-esac
+if is_suse_based; then
+ OCF_RESKEY_nc_default="/usr/bin/socat"
+else
+ OCF_RESKEY_nc_default="/usr/bin/nc"
+fi
+
OCF_RESKEY_port_default="61000"
: ${OCF_RESKEY_nc=${OCF_RESKEY_nc_default}}
diff --git a/heartbeat/ocf-distro b/heartbeat/ocf-distro
index f69910c9..9ccb6731 100644
--- a/heartbeat/ocf-distro
+++ b/heartbeat/ocf-distro
@@ -3,45 +3,211 @@
#
# Currently needed for the nfsserver RA which has some already
# released RH specific stuff (/etc/sysconfig/nfs editing)
+#
+# These functions are intended to be POSIX-compliant for portability.
#
+# systemd-based systems should all have an os-release file.
+_ETC_OS_RELEASE_FILE="/etc/os-release"
+_USR_OS_RELEASE_FILE="/usr/lib/os-release"
+
+# Legacy distro-specific files
_DEBIAN_VERSION_FILE="/etc/debian_version"
_REDHAT_RELEASE_FILE="/etc/redhat-release"
_SUSE_RELEASE_FILE="/etc/SuSE-release"
-_RELEASE_FILES="/etc/*-release"
-_REDHAT_BASED_DISTROS_RE='red *hat|fedora|centos|scientific linux'
-get_release_id() {
- if which lsb_release >/dev/null 2>&1; then
- lsb_release -si
- elif [ -e $_DEBIAN_VERSION_FILE ]; then
- echo Debian
- elif [ -e $_SUSE_RELEASE_FILE ]; then
- echo SUSE
- elif [ -e $_REDHAT_RELEASE_FILE ]; then
- echo Redhat
- else # FIXME not exactly the id here, but will do for our purpose
- cat $_RELEASE_FILES 2>/dev/null
+_DEBIAN_BASED_DISTROS_RE="debian|ubuntu"
+_REDHAT_BASED_DISTROS_RE="red *hat|rhel|fedora|centos|scientific"
+_SUSE_BASED_DISTROS_RE="sles|suse"
+
+
+# Converts OS release ID to a standard form regardless of source.
+_process_os_release_id() {
+ _os="$1"
+
+ # Convert to lowercase, isolate distro name, remove whitespace
+ _os=$(echo "$_os" \
+ | tr "[:upper:]" "[:lower:]" \
+ | sed -e "s|\(gnu/\)*linux||" -e "s/server//" \
+ -e "s/release.*//" -e "s/[[:digit:]].*//" \
+ -e "s/[[:blank:]]//")
+
+ # Normalize known distros to os-release names
+ case "$_os" in
+ *centos*)
+ _os="centos"
+ ;;
+ *debian*)
+ _os="debian"
+ ;;
+ *fedora*)
+ _os="fedora"
+ ;;
+ *redhat*|*rhel*|*scientific*)
+ _os="rhel"
+ ;;
+ *opensuse*)
+ _os="opensuse"
+ ;;
+ *suseenterprise*)
+ _os="sles"
+ ;;
+ *ubuntu*)
+ _os="ubuntu"
+ ;;
+ esac
+
+ echo "$_os"
+}
+
+# Converts OS version ID to a form that ocf_version_cmp() can handle.
+# Strips any garbage.
+_process_os_version_id() {
+ _ver="$1"
+
+ # Discard everything except the version.
+ # Use ocf_version_cmp() format if present, or bare integer
+ # otherwise.
+ # Append ".0" for integers so that ocf_version_cmp() doesn't
+ # fail.
+ _ver_cmp_fmt="[[:digit:]][[:digit:].-]*[[:digit:]]"
+ _ver=$(echo "$_ver" \
+ | sed -n -e "s/[^[:digit:]]*\(${_ver_cmp_fmt}\).*/\1/p" \
+ -e "s/[^[:digit:]]*\([[:digit:]]*\).*/\1.0/p" \
+ | head -n 1)
+
+ echo "$_ver"
+}
+
+# Gets OS release ID (i.e., distro) or version ID from os-release file.
+# $_ETC_OS_RELEASE_FILE takes precedence over $_USR_OS_RELEASE_FILE.
+_get_val_from_os_release_file() {
+ _key=""
+ _value=""
+ _func=""
+
+ case "$1" in
+ id)
+ _key="ID"
+ _func="_process_os_release_id"
+ ;;
+ version_id)
+ _key="VERSION_ID"
+ _func="_process_os_version_id"
+ ;;
+ esac
+
+ if [ -n "$_key" ]; then
+ if [ -f "$_ETC_OS_RELEASE_FILE" ]; then
+ _value=$(awk -F "=" -v k="$_key" '$1 == k {print $2}' \
+ "$_ETC_OS_RELEASE_FILE" | tr -d \")
+ fi
+
+ if [ -z "$_value" ] && [ -f "$_USR_OS_RELEASE_FILE" ]; then
+ _value=$(awk -F "=" -v k="$_key" '$1 == k {print $2}' \
+ "$_USR_OS_RELEASE_FILE" | tr -d \")
+ fi
fi
+
+ # Ensure the value is in the correct format
+ [ -n "$_func" ] && _value=$("$_func" "$_value")
+
+ echo "$_value"
}
-is_redhat_based() {
- get_release_id | egrep -qsi "$_REDHAT_BASED_DISTROS_RE"
+# Gets OS release ID from lsb_release command or legacy *-release files
+_get_os_from_legacy_source() {
+ _os=""
+
+ if which lsb_release >/dev/null 2>&1; then
+ _os=$(lsb_release -si)
+
+ elif [ -f "$_DEBIAN_VERSION_FILE" ]; then
+ _os="debian"
+
+ elif [ -f "$_REDHAT_RELEASE_FILE" ]; then
+ _os=$(head -n 1 "$_REDHAT_RELEASE_FILE")
+
+ elif [ -f "$_SUSE_RELEASE_FILE" ]; then
+ _os=$(head -n 1 "$_SUSE_RELEASE_FILE")
+
+ else
+ _os=$(uname -s)
+ fi
+
+ _process_os_release_id "$_os"
}
-# get_os_ver() is currently unused
-get_os_ver() {
+# Gets OS version from lsb_release command or legacy *-release files
+_get_version_from_legacy_source() {
+ _ver=""
+
if which lsb_release >/dev/null 2>&1; then
- OS=`lsb_release -si`
- VER=`lsb_release -sr`
- elif [ -f $_DEBIAN_VERSION_FILE ]; then
- OS=Debian
- VER=$(cat $_DEBIAN_VERSION_FILE)
- elif [ -f $_REDHAT_RELEASE_FILE ]; then
- OS=RedHat # redhat or similar
- VER=$(sed "s/.* release \([^ ]\+\).*/\1/" $_REDHAT_RELEASE_FILE)
+ _ver=$(lsb_release -sr)
+
+ elif [ -f "$_DEBIAN_VERSION_FILE" ]; then
+ _ver=$(cat "$_DEBIAN_VERSION_FILE")
+
+ elif [ -f "$_REDHAT_RELEASE_FILE" ]; then
+ _ver=$(head -1 "$_REDHAT_RELEASE_FILE")
+
+ elif [ -f "$_SUSE_RELEASE_FILE" ]; then
+ _ver=$(awk '$1 == "VERSION" {print $3}' "$_SUSE_RELEASE_FILE")
+ _patchlevel=$(awk '$1 == "PATCHLEVEL" {print $3}' \
+ "$_SUSE_RELEASE_FILE")
+
+ [ -n "$_patchlevel" ] && _ver="${_ver}.${_patchlevel}"
+
else
- OS=$(uname -s)
- VER=$(uname -r)
+ _ver=$(uname -r)
fi
+
+ _process_os_version_id "$_ver"
+}
+
+# Prints OS release ID (i.e., distro name)
+get_release_id() {
+ _os=$(_get_val_from_os_release_file id)
+
+ if [ -z "$_os" ]; then
+ _os=$(_get_os_from_legacy_source)
+ fi
+
+ echo "$_os"
+}
+
+# Prints OS version ID
+get_os_version_id() {
+ _ver=$(_get_val_from_os_release_file version_id)
+
+ if [ -z "$_ver" ] || [ "$(get_release_id)" = "debian" ]; then
+ # Debian only includes major release in os-release.
+ # $_DEBIAN_VERSION_FILE has ${major}.${minor}.
+ _ver=$(_get_version_from_legacy_source)
+ fi
+
+ echo "$_ver"
+}
+
+# Returns true if the OS is Debian-based, otherwise false
+is_debian_based() {
+ get_release_id | grep -Eqi "$_DEBIAN_BASED_DISTROS_RE"
+}
+
+# Returns true if the OS is Red Hat-based, otherwise false
+is_redhat_based() {
+ get_release_id | grep -Eqi "$_REDHAT_BASED_DISTROS_RE"
+}
+
+# Returns true if the OS is SUSE-based, otherwise false
+is_suse_based() {
+ get_release_id | grep -Eqi "$_SUSE_BASED_DISTROS_RE"
+}
+
+# Sets global variables OS and VER.
+# get_os_ver() is currently unused upstream; maintained for backwards
+# compatibility.
+get_os_ver() {
+ OS=$(get_release_id)
+ VER=$(get_os_version_id)
}
--
2.32.0
