Deletes out long running containers (over 4 hours)

long_running_containers.sh

# Containers
docker inspect $(docker ps -a --format "{{.ID}}") | python -c '
from __future__ import print_function
import sys
import json
from datetime import datetime as dt

EXPIRATION_HOURS = 4

containers = json.loads(sys.stdin.read())

for c in containers:
    d = dt.strptime(c["State"]["StartedAt"].split(".")[0], "%Y-%m-%dT%H:%M:%S")
    if (dt.now() - d).seconds/3600 >= EXPIRATION_HOURS:
        print(c["Id"])
' | xargs docker rm -f

# Images (very similar)
docker inspect $(docker images --format "{{.ID}}") | python -c '
from __future__ import print_function
import sys
import json
from datetime import datetime as dt
EXPIRATION_HOURS = 4
containers = json.loads(sys.stdin.read())
for c in containers:
    d = dt.strptime(c["Created"].split(".")[0], "%Y-%m-%dT%H:%M:%S")
    if (dt.now() - d).seconds/3600 >= EXPIRATION_HOURS:
        print(" ".join(c["RepoTags"]))
' | xargs -n 25 docker image rm