mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
cf89f97a14
Add a simple check and a summary report for the support script.
Report:
==SUMMARY==
Processed 3 networks
IP overlap found: 1
Processed 167 containers
Overlap found:
*** OVERLAP on Network 0ewr5iqraa8zv9l4qskp93wxo ***
2 "192.168.1.138",
Signed-off-by: Flavio Crisciani <flavio.crisciani@docker.com>
104 lines
4 KiB
Bash
Executable file
104 lines
4 KiB
Bash
Executable file
#!/usr/bin/env bash
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# Required tools
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DOCKER="${DOCKER:-docker}"
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NSENTER="${NSENTER:-nsenter}"
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BRIDGE="${BRIDGE:-bridge}"
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IPTABLES="${IPTABLES:-iptables}"
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IPVSADM="${IPVSADM:-ipvsadm}"
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IP="${IP:-ip}"
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networks=0
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containers=0
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ip_overlap=0
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NSDIR=/var/run/docker/netns
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function die {
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echo $*
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exit 1
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}
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function echo_and_run {
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echo "#" "$@"
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eval $(printf '%q ' "$@") < /dev/stdout
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}
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function check_ip_overlap {
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inspect=$1
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overlap=$(echo "$inspect_output" | grep "EndpointIP\|VIP" | awk -F ':' '{print $2}' | sort | uniq -c | grep -v "1 ")
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if [ ! -z "$overlap" ]; then
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echo -e "\n\n*** OVERLAP on Network ${networkID} ***";
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echo -e "${overlap} \n\n"
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((ip_overlap++))
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else
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echo "No overlap"
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fi
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}
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type -P ${DOCKER} > /dev/null || echo "This tool requires the docker binary"
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type -P ${NSENTER} > /dev/null || echo "This tool requires nsenter"
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type -P ${BRIDGE} > /dev/null || echo "This tool requires bridge"
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type -P ${IPTABLES} > /dev/null || echo "This tool requires iptables"
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type -P ${IPVSADM} > /dev/null || echo "This tool requires ipvsadm"
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type -P ${IP} > /dev/null || echo "This tool requires ip"
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if ${DOCKER} network inspect --help | grep -q -- --verbose; then
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NETINSPECT_VERBOSE_SUPPORT="--verbose"
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else
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NETINSPECT_VERBOSE_SUPPORT=""
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fi
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echo "Host Configuration"
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echo_and_run ${IPTABLES} -w1 -n -v -L -t filter | grep -v '^$'
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echo_and_run ${IPTABLES} -w1 -n -v -L -t nat | grep -v '^$'
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echo_and_run ${IPTABLES} -w1 -n -v -L -t mangle | grep -v '^$'
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printf "\n"
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echo "Host addresses and routes"
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echo_and_run ${IP} -o -4 address show
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echo_and_run ${IP} -4 route show
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printf "\n"
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echo "Overlay network configuration"
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for networkID in $(${DOCKER} network ls --no-trunc --filter driver=overlay -q) "ingress_sbox"; do
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echo "nnn Network ${networkID}"
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if [ "${networkID}" != "ingress_sbox" ]; then
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nspath=(${NSDIR}/*-${networkID:0:10})
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inspect_output=$(${DOCKER} network inspect ${NETINSPECT_VERBOSE_SUPPORT} ${networkID})
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echo "$inspect_output"
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check_ip_overlap $inspect_output
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else
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nspath=(${NSDIR}/${networkID})
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fi
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -o -4 address show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -4 route show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -4 neigh show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${BRIDGE} fdb show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPTABLES} -w1 -n -v -L -t filter | grep -v '^$'
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPTABLES} -w1 -n -v -L -t nat | grep -v '^$'
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPTABLES} -w1 -n -v -L -t mangle | grep -v '^$'
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPVSADM} -l -n
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printf "\n"
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((networks++))
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done
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echo "Container network configuration"
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for containerID in $(${DOCKER} container ls -q); do
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echo "ccc Container ${containerID}"
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${DOCKER} container inspect ${containerID} --format 'Name:{{json .Name | printf "%s\n"}}Id:{{json .Id | printf "%s\n"}}Hostname:{{json .Config.Hostname | printf "%s\n"}}CreatedAt:{{json .Created | printf "%s\n"}}State:{{json .State|printf "%s\n"}}RestartCount:{{json .RestartCount | printf "%s\n" }}Labels:{{json .Config.Labels | printf "%s\n"}}NetworkSettings:{{json .NetworkSettings}}' | sed '/^State:/ {s/\\"/QUOTE/g; s/,"Output":"[^"]*"//g;}'
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nspath=$(docker container inspect --format {{.NetworkSettings.SandboxKey}} ${containerID})
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -o -4 address show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -4 route show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IP} -4 neigh show
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPTABLES} -w1 -n -v -L -t nat | grep -v '^$'
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPTABLES} -w1 -n -v -L -t mangle | grep -v '^$'
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echo_and_run ${NSENTER} --net=${nspath[0]} ${IPVSADM} -l -n
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printf "\n"
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((containers++))
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done
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echo -e "\n\n==SUMMARY=="
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echo -e "\t Processed $networks networks"
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echo -e "\t IP overlap found: $ip_overlap"
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echo -e "\t Processed $containers containers"
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