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6f6bb380ef
This may be used to output the JSON schema which describes the output of
show info json and show stats json.
The JSON output is without any extra whitespace in order to reduce the
volume of output. For human consumption passing the output through a
pretty printer may be helpful.
e.g.:
$ echo "show schema json" | socat /var/run/haproxy.stat stdio | \
python -m json.tool
The implementation does not generate the schema. Some consideration could
be given to integrating the output of the schema with the output of
typed and json info and stats. In particular the types (u32, s64, etc...)
and tags.
A sample verification of show info json and show stats json using
the schema is as follows. It uses the jsonschema python module:
cat > jschema.py << __EOF__
import json
from jsonschema import validate
from jsonschema.validators import Draft3Validator
with open('schema.txt', 'r') as f:
schema = json.load(f)
Draft3Validator.check_schema(schema)
with open('instance.txt', 'r') as f:
instance = json.load(f)
validate(instance, schema, Draft3Validator)
__EOF__
$ echo "show schema json" | socat /var/run/haproxy.stat stdio > schema.txt
$ echo "show info json" | socat /var/run/haproxy.stat stdio > instance.txt
python ./jschema.py
$ echo "show stats json" | socat /var/run/haproxy.stat stdio > instance.txt
python ./jschema.py
Signed-off-by: Simon Horman <horms@verge.net.au>
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