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Partially handle shell variable expansion

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This commit is contained in:
David Boreham 2024-02-08 07:15:52 -07:00
parent 4956fab325
commit bb73ceb0f7
1 changed files with 10 additions and 2 deletions
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12
stack_orchestrator/deploy/k8s/helpers.py
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@ -17,6 +17,7 @@ from kubernetes import client
import os import os
from pathlib import Path from pathlib import Path
import subprocess import subprocess
import re
from typing import Set, Mapping, List from typing import Set, Mapping, List
from stack_orchestrator.opts import opts from stack_orchestrator.opts import opts
@ -220,9 +221,16 @@ def merge_envs(a: Mapping[str, str], b: Mapping[str, str]) -> Mapping[str, str]:
return result return result
# DANGER: implement me
def _expand_shell_vars(raw_val: str) -> str: def _expand_shell_vars(raw_val: str) -> str:
return raw_val # could be: <string> or ${<env-var-name>} or ${<env-var-name>:-<default-value>}
# TODO: implement support for variable substitution and default values
# if raw_val is like ${<something>} print a warning and substitute an empty string
# otherwise return raw_val
match = re.search(r"^\$\{(.*)\}$", raw_val)
if match:
print(f"WARNING: found unimplemented environment variable substitution: {raw_val}")
else:
return raw_val
# TODO: handle the case where the same env var is defined in multiple places # TODO: handle the case where the same env var is defined in multiple places