62 lines
1.9 KiB
Bash
62 lines
1.9 KiB
Bash
#!/bin/sh
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# vim:sw=4:ts=4:et
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set -e
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ME=$(basename $0)
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DEFAULT_CONF_FILE="etc/nginx/conf.d/default.conf"
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# check if we have ipv6 available
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if [ ! -f "/proc/net/if_inet6" ]; then
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echo >&3 "$ME: info: ipv6 not available"
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exit 0
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fi
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if [ ! -f "/$DEFAULT_CONF_FILE" ]; then
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echo >&3 "$ME: info: /$DEFAULT_CONF_FILE is not a file or does not exist"
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exit 0
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fi
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# check if the file can be modified, e.g. not on a r/o filesystem
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touch /$DEFAULT_CONF_FILE 2>/dev/null || { echo >&3 "$ME: info: can not modify /$DEFAULT_CONF_FILE (read-only file system?)"; exit 0; }
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# check if the file is already modified, e.g. on a container restart
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grep -q "listen \[::]\:8080;" /$DEFAULT_CONF_FILE && { echo >&3 "$ME: info: IPv6 listen already enabled"; exit 0; }
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if [ -f "/etc/os-release" ]; then
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. /etc/os-release
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else
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echo >&3 "$ME: info: can not guess the operating system"
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exit 0
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fi
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echo >&3 "$ME: info: Getting the checksum of /$DEFAULT_CONF_FILE"
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case "$ID" in
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"debian")
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CHECKSUM=$(dpkg-query --show --showformat='${Conffiles}\n' nginx | grep $DEFAULT_CONF_FILE | cut -d' ' -f 3)
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echo "$CHECKSUM /$DEFAULT_CONF_FILE" | md5sum -c - >/dev/null 2>&1 || {
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echo >&3 "$ME: info: /$DEFAULT_CONF_FILE differs from the packaged version"
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exit 0
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}
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;;
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"alpine")
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CHECKSUM=$(apk manifest nginx 2>/dev/null| grep $DEFAULT_CONF_FILE | cut -d' ' -f 1 | cut -d ':' -f 2)
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echo "$CHECKSUM /$DEFAULT_CONF_FILE" | sha1sum -c - >/dev/null 2>&1 || {
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echo >&3 "$ME: info: /$DEFAULT_CONF_FILE differs from the packaged version"
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exit 0
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}
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;;
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*)
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echo >&3 "$ME: info: Unsupported distribution"
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exit 0
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;;
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esac
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# enable ipv6 on default.conf listen sockets
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sed -i -E 's,listen 8080;,listen 8080;\n listen [::]:8080;,' /$DEFAULT_CONF_FILE
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echo >&3 "$ME: info: Enabled listen on IPv6 in /$DEFAULT_CONF_FILE"
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exit 0
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