computer-playbook/roles/docker-compose-restart-unhealthy/files/docker-compose-restart-unhealthy.py

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#!/bin/python
#
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# restart docker-compose configurations who have exited or unhealthy containers
#
import subprocess
import time
def bash(command):
print(command)
process = subprocess.Popen([command], stdout=subprocess.PIPE, stderr=subprocess.PIPE, shell=True)
out, err = process.communicate()
stdout = out.splitlines()
output = []
for line in stdout:
output.append(line.decode("utf-8"))
if process.wait() > bool(0):
print(command, out, err)
raise Exception("Exitcode is greater then 0")
return output
def list_to_string(list):
return str(' '.join(list))
def print_bash(command):
output = bash(command)
print(list_to_string(output))
return output
waiting_time=600
backup_running=True
while backup_running:
try:
bash("systemctl is-active --quiet docker-volume-backup.service")
print("backup is running.")
print("trying again in " + str(waiting_time) + " seconds.")
time.sleep(waiting_time)
except:
backup_running=False
print("no backup is running.")
unhealthy_container_names=print_bash('docker ps --filter health=unhealthy --format \'{{.Names}}\'')
exited_container_names=print_bash('docker ps --filter status=exited --format \'{{.Names}}\'')
failed_containers=unhealthy_container_names + exited_container_names
unfiltered_failed_docker_compose_repositories=[]
for failed_container in failed_containers:
unfiltered_failed_docker_compose_repositories.append(failed_container.split('-')[0])
filtered_failed_docker_compose_repositories=list(dict.fromkeys(unfiltered_failed_docker_compose_repositories))
for filtered_failed_docker_compose_repository in filtered_failed_docker_compose_repositories:
print("restarting unhealthy container: " + filtered_failed_docker_compose_repository)
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print_bash('cd /home/administrator/docker-compose/' + filtered_failed_docker_compose_repository + '/ && docker-compose restart')
print("finished restart procedure.")