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templates.py
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templates.py
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from sqlalchemy.orm import Session
from sqlalchemy.exc import IntegrityError
from fastapi import HTTPException
from api.db.models import containers as models
from api.utils.templates import conv_sysctls2dict, conv_ports2dict
from datetime import datetime
import urllib.request
from urllib.parse import urlparse
import json
import yaml
import os
# Templates
def get_templates(db: Session):
return db.query(models.Template).all()
def get_template(db: Session, url: str):
return db.query(models.Template).filter(models.Template.url == url).first()
def get_template_by_id(db: Session, id: int):
return db.query(models.Template).filter(models.Template.id == id).first()
def get_template_items(db: Session, template_id: int):
return (
db.query(models.TemplateItem)
.filter(models.TemplateItem.template_id == template_id)
.all()
)
def delete_template(db: Session, template_id: int):
_template = (
db.query(models.Template).filter(models.Template.id == template_id).first()
)
db.delete(_template)
db.commit()
return _template
def add_template(db: Session, template: models.Template):
try:
_template_path = urlparse(template.url).path
ext = os.path.splitext(_template_path)[1]
# Opens the JSON and iterate over the content.
_template = models.Template(title=template.title, url=template.url)
with urllib.request.urlopen(template.url) as file:
if ext.rstrip() in (".yml", ".yaml"):
loaded_file = yaml.load(file, Loader=yaml.SafeLoader)
elif ext.rstrip() in (".json", "json"):
loaded_file = json.load(file)
else:
print("Invalid filetype")
raise
if type(loaded_file) == list:
for entry in loaded_file:
ports = conv_ports2dict(entry.get("ports", []))
sysctls = conv_sysctls2dict(entry.get("sysctls", []))
# Optional use classmethod from_dict
try:
template_content = models.TemplateItem(
type=int(entry.get("type", 1)),
title=entry["title"],
platform=entry["platform"],
description=entry.get("description", ""),
name=entry.get("name", entry["title"].lower()),
command=entry.get("command"),
logo=entry.get("logo", ""), # default logo here!
image=entry.get("image", ""),
notes=entry.get("note", ""),
categories=entry.get("categories", ""),
restart_policy=entry.get("restart_policy"),
ports=ports,
network_mode=entry.get("network_mode", ""),
network=entry.get("network", ""),
volumes=entry.get("volumes", []),
env=entry.get("env", []),
devices=entry.get("devices", []),
labels=entry.get("labels", []),
sysctls=sysctls,
cap_add=entry.get("cap_add", []),
cpus=entry.get("cpus"),
mem_limit=entry.get("mem_limit"),
)
except Exception as exc:
raise HTTPException(
status_code=exc.response.status_code,
detail=entry.get("name") + " " + exc.explanation,
)
_template.items.append(template_content)
elif type(loaded_file) == dict:
entry = loaded_file
ports = conv_ports2dict(entry.get("ports", []))
sysctls = conv_sysctls2dict(entry.get("sysctls", []))
# Optional use classmethod from_dict
template_content = models.TemplateItem(
type=int(entry.get("type", 1)),
title=entry["title"],
platform=entry["platform"],
description=entry.get("description", ""),
name=entry.get("name", entry["title"].lower()),
command=entry.get("command"),
logo=entry.get("logo", ""), # default logo here!
image=entry.get("image", ""),
notes=entry.get("note", ""),
categories=entry.get("categories", ""),
restart_policy=entry.get("restart_policy"),
ports=ports,
network_mode=entry.get("network_mode", ""),
network=entry.get("network", ""),
volumes=entry.get("volumes", []),
env=entry.get("env", []),
devices=entry.get("devices", []),
labels=entry.get("labels", []),
sysctls=sysctls,
cap_add=entry.get("cap_add", []),
cpus=entry.get("cpus"),
mem_limit=entry.get("mem_limit"),
)
_template.items.append(template_content)
except (OSError, TypeError, ValueError) as err:
# Optional handle KeyError here too.
print("data request failed", err)
raise HTTPException(status_code=err.status_code, detail=err.explanation)
try:
db.add(_template)
db.commit()
except IntegrityError as err:
# TODO raises IntegrityError on duplicates (uniqueness)
# status
db.rollback()
return get_template(db=db, url=template.url)
def refresh_template(db: Session, template_id: id):
template = (
db.query(models.Template).filter(models.Template.id == template_id).first()
)
_template_path = urlparse(template.url).path
ext = os.path.splitext(_template_path)[1]
items = []
try:
with urllib.request.urlopen(template.url) as fp:
if ext.rstrip() in (".yml", ".yaml"):
loaded_file = yaml.load(fp, Loader=yaml.SafeLoader)
elif ext.rstrip() in (".json"):
loaded_file = json.load(fp)
else:
print("Invalid filetype")
raise HTTPException(status_code=422, detail="Invalid filetype")
if type(loaded_file) == list:
for entry in loaded_file:
if entry.get("ports"):
ports = conv_ports2dict(entry.get("ports", []))
sysctls = conv_sysctls2dict(entry.get("sysctls", []))
item = models.TemplateItem(
type=int(entry["type"]),
title=entry["title"],
platform=entry["platform"],
description=entry.get("description", ""),
name=entry.get("name", entry["title"].lower()),
command=entry.get("command"),
logo=entry.get("logo", ""), # default logo here!
image=entry.get("image", ""),
notes=entry.get("note", ""),
categories=entry.get("categories", ""),
restart_policy=entry.get("restart_policy"),
ports=ports,
network_mode=entry.get("network_mode", ""),
network=entry.get("network", ""),
volumes=entry.get("volumes", []),
env=entry.get("env", []),
devices=entry.get("devices", []),
labels=entry.get("labels", []),
sysctls=sysctls,
cap_add=entry.get("cap_add", []),
cpus=entry.get("cpus"),
mem_limit=entry.get("mem_limit"),
)
items.append(item)
elif type(loaded_file) == dict:
entry = loaded_file
ports = conv_ports2dict(entry.get("ports", []))
sysctls = conv_sysctls2dict(entry.get("sysctls", []))
# Optional use classmethod from_dict
template_content = models.TemplateItem(
type=int(entry["type"]),
title=entry["title"],
platform=entry["platform"],
description=entry.get("description", ""),
name=entry.get("name", entry["title"].lower()),
command=entry.get("command"),
logo=entry.get("logo", ""), # default logo here!
image=entry.get("image", ""),
notes=entry.get("note", ""),
categories=entry.get("categories", ""),
restart_policy=entry.get("restart_policy"),
ports=ports,
network_mode=entry.get("network_mode", ""),
network=entry.get("network", ""),
volumes=entry.get("volumes", []),
env=entry.get("env", []),
devices=entry.get("devices", []),
labels=entry.get("labels", []),
sysctls=sysctls,
cap_add=entry.get("cap_add", []),
cpus=entry.get("cpus"),
mem_limit=entry.get("mem_limit"),
)
items.append(template_content)
except Exception as exc:
if hasattr(exc, "code") and exc.code == 404:
raise HTTPException(status_code=exc.code, detail=exc.url)
else:
print("Template update failed. ERR_001", exc)
raise HTTPException(status_code=exc.status_code, detail=exc.explanation)
else:
# db.delete(template)
# make_transient(template)
# db.commit()
template.updated_at = datetime.utcnow()
template.items = items
try:
# db.add(template)
db.commit()
print(f'Template "{template.title}" updated successfully.')
except Exception as exc:
db.rollback()
print("Template update failed. ERR_002", exc)
raise HTTPException(
status_code=exc.response.status_code, detail=exc.explanation
)
return template
def read_app_template(db, app_id):
try:
template_item = (
db.query(models.TemplateItem)
.filter(models.TemplateItem.id == app_id)
.first()
)
return template_item
except Exception as exc:
raise HTTPException(
status_code=exc.response.status_code, detail=exc.explanation
)
def set_template_variables(db: Session, new_variables: models.TemplateVariables):
try:
template_vars = db.query(models.TemplateVariables).all()
variables = []
t_vars = new_variables
for entry in t_vars:
template_variables = models.TemplateVariables(
variable=entry.variable, replacement=entry.replacement
)
variables.append(template_variables)
db.query(models.TemplateVariables).delete()
db.add_all(variables)
db.commit()
new_template_variables = db.query(models.TemplateVariables).all()
return new_template_variables
except IntegrityError as exc:
print(exc)
raise HTTPException(status_code=exc.status_code, detail=exc.explanation)
def read_template_variables(db: Session):
return db.query(models.TemplateVariables).all()