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# *
# http://www.apache.org/licenses/LICENSE-2.0 *
# *
# Unless required by applicable law or agreed to in writing, *
# software distributed under the License is distributed on an *
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY *
# KIND, either express or implied. See the License for the *
# specific language governing permissions and limitations *
# under the License. *
# This script checks if deployments are working or and then
# starts the specified containers in case one of the containers
# crash. The only solution is restarting docker as of now.
#!/bin/bash
## List of modules
modules=(testapi reporting)
## Ports of the modules
declare -A ports=( ["testapi"]="8082" ["reporting"]="8084")
## Urls to check if the modules are deployed or not ?
declare -A urls=( ["testapi"]="http://testresults.opnfv.org/test/" \
["reporting"]="http://testresults.opnfv.org/reporting/index.html")
### Functions related to checking.
function is_deploying() {
xml=$(curl -m10 "https://build.opnfv.org/ci/job/${1}-automate-master/lastBuild/api/xml?depth=1")
building=$(grep -oPm1 "(?<=<building>)[^<]+" <<< "$xml")
if [[ $building == "false" ]]
then
false
else
true
fi
}
function get_docker_status() {
status=$(service docker status | sed -n 3p | cut -d ' ' -f5)
echo -e "Docker status: $status"
if [ $status = "active" ]
then
true
else
false
fi
}
function check_connectivity() {
echo "Checking $1 connection : $2"
cmd=`curl --head -m10 --request GET ${2} | grep '200 OK' > /dev/null`
rc=$?
if [[ $rc == 0 ]]; then
true
else
false
fi
}
function check_modules() {
echo -e "Checking modules"
failed_modules=()
for module in "${modules[@]}"
do
if is_deploying $module; then
continue
fi
if ! check_connectivity $module "${urls[$module]}"; then
echo -e "$module failed"
failed_modules+=($module)
fi
done
if [ ! -z "$failed_modules" ]; then
echo -e "Failed Modules: $failed_modules"
false
else
echo -e "All modules working good"
exit 0
fi
}
### Functions related fixes.
function restart_docker_fix() {
echo -e "Running restart_docker_fix"
service docker restart
start_containers_fix "${modules[@]}"
}
function docker_proxy_fix() {
echo -e "Running docker_proxy_fix"
fix_modules=("${@}")
for module in "${fix_modules[@]}"
do
echo -e "Kill docker proxy and restart containers"
pid=$(netstat -nlp | grep :${ports[$module]} | awk '{print $7}' | cut -d'/' -f1)
echo $pid
if [ ! -z "$pid" ]; then
kill $pid
start_container_fix $module
fi
done
}
function start_containers_fix() {
start_modules=("${@}")
for module in "${start_modules[@]}"
do
start_container_fix $module
done
}
function start_container_fix() {
echo -e "Starting a container $module"
sudo docker stop $module
sudo docker start $module
sleep 5
if ! check_connectivity $module "${urls[$module]}"; then
echo -e "Starting an old container $module_old"
sudo docker stop $module
sudo docker start $module"_old"
sleep 5
fi
}
### Main Flow
echo -e
echo -e "WatchDog Started"
echo -e
echo -e `date "+%Y-%m-%d %H:%M:%S.%N"`
echo -e
## If the problem is related to docker daemon
if ! get_docker_status; then
restart_docker_fix
if ! check_modules; then
echo -e "Watchdog failed while restart_docker_fix"
fi
exit
fi
## If the problem is related to docker proxy
if ! check_modules; then
docker_proxy_fix "${failed_modules[@]}"
fi
## If any other problem : restart docker
if ! check_modules; then
restart_docker_fix
fi
## If nothing works out
if ! check_modules; then
echo -e "Watchdog failed"
fi
sudo docker ps
sudo docker images
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