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42 lines
1.2 KiB
Bash
Executable File
42 lines
1.2 KiB
Bash
Executable File
#! /bin/bash
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# This is a hack.
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# - Docker sets the default route to 10.11.0.1 which is the host-side of the bridge.
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# - Our 'router' instance likes to receive all the traffic instead.
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# - Remove host's bridge ip of 10.11.0.1 (set to 10.255.255.254/31 or any nonsense)
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# - Router's init.sh script will take over 10.11.0.1
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# An alternative would be to assign a default gw in user's sf-shell but this
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# would require NET_ADMIN, which we dont want to grant the user.
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#
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ERREXIT()
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{
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local code
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code="$1"
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shift 1
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[[ -z $code ]] && exit 0
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echo -e >&2 "$@"
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exit "$code"
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}
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[[ -n $SF_DEBUG ]] && {
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ip link show >&2
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ip addr show >&2
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ip route show >&2
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}
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ip addr show | grep 'inet 10\.255\.255\.254' >/dev/null && ERREXIT 0 "Host's bridge already fixed and set to 10.255.255.254."
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l=$(ip addr show | grep 'inet 10\.11\.' | head)
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[[ -z $l ]] && ERREXIT 255 "Failed to find network"
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DEV="$(echo "$l" | awk '{ print $7; }')"
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[[ -z $DEV ]] && ERREXIT 254 "Failed to find device"
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ip link show "$DEV" >/dev/null || ERREXIT 253 "Failed to find device (DEV='${DEV}')"
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# Set to anything non-existing like 10.255...
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/usr/sbin/ifconfig "$DEV" 10.255.255.254/31 && ERREXIT 0 "SUCCESS"
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ERREXIT 252 "Failed to disable host's bridge"
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