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proxy-scheduler/scripts/check_proxy_state.sh
2024-09-09 16:47:05 +02:00

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# Initial parameters
DATE=`date +%F-%H-%M-%S`
TIMEOUT=$TIMEOUT
RESTART=$RESTART
RESTART_COUNTER=0
REGISTRY_URL=$DOCKER_REGISTRY_URL
# Set env variables
FILENAME="$1"
DOMAIN_DIR=$DOMAIN_DIR
if [ -f $DOMAIN_DIR"/"$FILENAME ]; then
DOMAIN=$(jq -r .DOMAIN $DOMAIN_DIR"/"$FILENAME)
else
# in case of CERT_DIR
DOMAIN=$FILENAME
fi;
PROXY_SERVICE_FILE=$PROXY_SERVICE_FILE
ROLE=$ROLE
SERVICE_NAME=$SERVICE_NAME
PROXY_CONFIG_DIR=$PROXY_CONFIG_DIR
# Setup docker registry url path
if [[ -n "$DOCKER_REGISTRY_URL" && "$DOCKER_REGISTRY_URL" != "null" ]] ; then
SETUP="/setup";
else
SETUP="setup";
DOCKER_REGISTRY_URL="";
fi
# SPECIAL MOUNTS CHEKING
DNS_DIR=$DNS_DIR
if [ "$DNS_DIR" == "" ] ; then
DNS_DIR="/etc/system/data/dns";
else
DNS="--env DNS_DIR=$DNS_DIR";
DNS_PATH="--volume $DNS_DIR:/etc/dns:rw";
fi
USER_INIT_PATH=$USER_INIT_PATH
if [ "$USER_INIT_PATH" == "" ]; then
USER_INIT_PATH=/etc/user/config;
else
USER_ENV="--env $USER_INIT_PATH=/etc/user/config";
USER_PATH="--volume $USER_INIT_PATH:/etc/user/config:ro";
fi
# Setting service files path
SERVICE_FILES=$SERVICE_FILES
if [ "$SERVICE_FILES" == "" ]; then
SERVICE_FILES=/etc/user/config/services
fi
CA_PATH=$CA_PATH
if [ "$CA_PATH" == "" ]; then
CA_PATH=/etc/ssl/certs;
else
CA="--env CA_PATH=$CA_PATH";
CA_FILE="--volume $CA_PATH:$CA_PATH:ro";
fi
service_exec="docker run --rm \
$DNS $DNS_PATH \
$CA $CA_FILE \
$USER_ENV $USER_PATH \
-w /services/ \
-v $SERVICE_FILES/:/services/:ro \
-v $SERVICE_FILES/tmp/:/services/tmp/:rw \
-w /services/ \
-v /etc/user/config/services/:/services/:ro \
-v /etc/user/config/services/tmp/:/services/tmp/:rw \
-v /var/run/docker.sock:/var/run/docker.sock \
--env DOCKER_REGISTRY_URL=$DOCKER_REGISTRY_URL \
$DOCKER_REGISTRY_URL$SETUP"
do_proxy_restart() {
local NAMES="$1"
for PROXY_NAME in $NAMES ; do
DO_RESTART="true";
if [ "$FORCE_RESTART" != "true" ]; then
docker stop $PROXY_NAME;
docker start $PROXY_NAME;
sleep $TIMEOUT;
if docker ps | grep $PROXY_NAME | grep Up ; then
echo "$PROXY_NAME restarted successful";
DO_RESTART="false";
fi
fi
if [ "$DO_RESTART" == "true" ]; then
for retries in $(seq 0 $((RESTART + 1))); do
if [[ $retries -le $RESTART ]] ; then
echo "Proxy "$PROXY_NAME" restarting in progress";
$service_exec $SERVICE_NAME.containers.$PROXY_NAME stop force;
## finding network name for starting affected network
#NETWORK_NAME=$(jq -r --arg NAME $PROXY_NAME '.containers[] | select(.NAME==$NAME)' $PROXY_SERVICE_FILE | jq -r .NETWORK)
#$service_exec $SERVICE_NAME.networks.$NETWORK_NAME start
$service_exec $SERVICE_NAME.containers.$PROXY_NAME start
sleep $TIMEOUT;
if docker ps | grep $PROXY_NAME | grep Up ; then
echo "$PROXY_NAME restarted successful";
break ;
else
echo "Restarting number is only: "$retries" so try again"
fi
else
echo "Reached retrying limit: "$RESTART" ,giving up, starting recocer previous state"
recover_process;
fi
done
fi
done
}
check_domain() {
echo "Checking $DOMAIN name";
CURL_CHECK="curl -m 5 -s -o /dev/null -w "%{http_code}" https://$DOMAIN";
if [[ "$(eval $CURL_CHECK)" == "200" ]] ; then
echo "$DOMAIN accessed successful";
else
send_error_msg $DOMAIN;
fi
}
recover_process() {
echo "Recovering previous state";
rm $DOMAIN_DIR/$FILENAME;
echo "#############################################################################"
echo "######## DOMAIN ##### $DOMAIN #### DELETED ################"
echo "#############################################################################"
exit;
}
send_error_msg () { echo "Sending error messages"
}
check_proxy_state() {
# Set restart counter to zero
CONTAINER_NAMES="";
CONTAINERS_BY_ROLE=0
RUNNING_CONTAINERS=0
# Check services with running containers by roles
for CONTAINER in $(jq -r --arg ROLE $ROLE '.containers[] | select(.ROLES==$ROLE)' $PROXY_SERVICE_FILE | jq -r .NAME) ; do
CONTAINERS_BY_ROLE=$((CONTAINERS_BY_ROLE +1))
UP=$(docker ps | grep $CONTAINER | grep Up | wc -l)
RUNNING_CONTAINERS=$((RUNNING_CONTAINERS + UP))
CONTAINERS=$CONTAINERS" "$CONTAINER;
if [[ "$UP" != 0 ]]; then
CONTAINER_NAMES=$CONTAINER_NAMES" "$CONTAINER;
fi;
done;
# The roles numbers and the running containers numbers are equal or greater than 2
if [[ "$RUNNING_CONTAINERS" == "$CONTAINERS_BY_ROLE" || "$RUNNING_CONTAINERS" -ge 2 ]] ; then
echo "Starting proxy restart process";
do_proxy_restart "$CONTAINER_NAMES";
# In case of no running proxies found, try to start the service
elif [[ "$RUNNING_CONTAINERS" -eq 0 ]] ; then
echo "No running proxies found, starting all";
do_proxy_restart "$CONTAINERS";
for proxies in $CONTAINERS ; do
if docker ps | grep $proxies | grep Up; then
echo "$proxies started successful";
else
echo "$proxies starting was unsuccesful";
# In case of unsuccessfuly restarted proxy needed to start the proxy containers restarting process.
do_proxy_restart $proxies;
fi
done
# In case of only one running proxy found, try to start the others of the service
elif [[ "$RUNNING_CONTAINERS" -eq 1 ]] ; then
echo "Only one running proxy found, starting all of the others";
for proxies in $CONTAINERS ; do
if [[ $proxies != $CONTAINER_NAMES ]] ; then
echo "No running containers: "$proxies" found.";
do_proxy_restart $proxies;
if docker ps | grep $proxies | grep Up ; then
echo "$proxies started successful";
else
echo "$proxies starting was unsuccesful";
fi
else
ONLY_RUNNING_PROXY_NAME=$proxies;
fi
done
# At last need to restart the only one running proxy when the others started successful.
for CHECK_PROXIES in $CONTAINERS ; do
if [[ $CHECK_PROXIES != $ONLY_RUNNING_PROXY_NAME ]] ; then
if docker ps | grep $CHECK_PROXIES | grep Up ; then
echo "Not running proxies successfuly started, let's start the only running one.";
do_proxy_restart $ONLY_RUNNING_PROXY_NAME;
else
echo "Not enough running proxies found, can't start the only running one.";
fi
fi
done
fi
} # end of check_proxy_state
# call method
check_proxy_state
echo "PROXY RESTARTED SUCCESSFULY"
# in case of new proxy configuration generated needed to copy the domain name to the configs file.then remove new_config flag.
if [[ -f $PROXY_CONFIG_DIR/new_config ]] ; then
if [[ ! -f $PROXY_CONFIG_DIR/config || "$(grep $DOMAIN $PROXY_CONFIG_DIR/config 2>/dev/null)" == "" ]] ; then
cat $PROXY_CONFIG_DIR/new_config >> $PROXY_CONFIG_DIR/config;
fi
rm $PROXY_CONFIG_DIR/new_config;
fi
# At last check the previously settings of domain.
check_domain
# sleep $TIMEOUT;
# RESTART_COUNTER=$((RESTART_COUNTER +1))
#
# echo "RUNNING CONTAINERS: "$RUNNING_CONTAINERS;
#
# if [[ "$RESTART_COUNTER" -le "$RESTART" ]] ; then
# echo "ELSE: check proxy state";
# check_proxy_state;
# else
# recover_process;
# fi
# for CONTAINER in `echo $CONTAINER_NAMES`; do
# done;