Issue
We have a scenario where we need to replace the TargetOriginID of CacheBehaviour in the distribution of a json file. We need to replace the Existing TargetOriginID with New Values. I have tried with below jq command but not getting any closer
for targetoriginID in $(jq '(.CacheBehaviors.Items[].TargetOriginId)' distconfig.json);
do
echo "#######fetch the new value from change behaviour json file"#######
NewValue=$(jq -r "map(select(.targetoriginid == ""$targetoriginID""))[].targetorigindr" changebehaviour.json)
echo "#########replace value in dist config json file with new value from change behaviour###########"
jq -r '(.CacheBehaviors.Items[].TargetOriginId | select(. == "$targetoriginID")) = "$NewValue"' distconfig.json > "tmp" && mv "tmp" distconfig.json
{
"CachedMethods": {
"Quantity": 3,
"Items": [
"HEAD",
"GET",
"OPTIONS"
]
}
},
"SmoothStreaming": false,
"Compress": false,
"LambdaFunctionAssociations": {
"Quantity": 0
},
"FunctionAssociations": {
"Quantity": 0
},
"FieldLevelEncryptionId": "",
"ForwardedValues": {
"QueryString": true,
"Cookies": {
"Forward": "none"
},
"Headers": {
"Quantity": 9,
"Items": [
"Authorization",
"Origin",
"access-control-allow-credentials",
"expires",
"access-control-max-age",
"access-control-allow-headers",
"cache-control",
"access-control-allow-methods",
"pragma"
]
},
"QueryStringCacheKeys": {
"Quantity": 1,
"Items": [
"*"
]
}
},
"MinTTL": 0,
"DefaultTTL": 86400,
"MaxTTL": 31536000
},
"CacheBehaviors": {
"Quantity": 2,
"Items": [
{
"PathPattern": "jkl/*",
"TargetOriginId": "nkl/Prod",
"TrustedSigners": {
"Enabled": false,
"Quantity": 0
},
"TrustedKeyGroups": {
"Enabled": false,
"Quantity": 0
},
"ViewerProtocolPolicy": "redirect-to-https",
"AllowedMethods": {
"Quantity": 7,
"Items": [
"HEAD",
"DELETE",
"POST",
"GET",
"OPTIONS",
"PUT",
"PATCH"
],
"CachedMethods": {
"Quantity": 3,
"Items": [
"HEAD",
"GET",
"OPTIONS"
]
}
},
"SmoothStreaming": false,
"Compress": false,
"LambdaFunctionAssociations": {
"Quantity": 0
},
"FunctionAssociations": {
"Quantity": 0
},
"FieldLevelEncryptionId": "",
"ForwardedValues": {
"QueryString": true,
"Cookies": {
"Forward": "all"
},
"Headers": {
"Quantity": 9,
"Items": [
"Authorization",
"Origin",
"access-control-allow-credentials",
"access-control-max-age",
"access-control-allow-headers",
"cache-control",
"access-control-allow-methods",
"expirers",
"pragma"
]
},
"QueryStringCacheKeys": {
"Quantity": 1,
"Items": [
"*"
]
}
},
"MinTTL": 0,
"DefaultTTL": 86400,
"MaxTTL": 31536000
},
{
"PathPattern": "fgh/*",
"TargetOriginId":"xyz/Prod",
"TrustedSigners": {
"Enabled": false,
"Quantity": 0
},
"TrustedKeyGroups": {
"Enabled": false,
"Quantity": 0
},
"ViewerProtocolPolicy": "redirect-to-https",
"AllowedMethods": {
"Quantity": 7,
"Items": [
"HEAD",
"DELETE",
"POST",
"GET",
"OPTIONS",
"PUT",
"PATCH"
],
"CachedMethods": {
"Quantity": 3,
"Items": [
"HEAD",
"GET",
"OPTIONS"
]
}
},
"SmoothStreaming": false,
"Compress": false,
"LambdaFunctionAssociations": {
"Quantity": 0
},
"FunctionAssociations": {
"Quantity": 0
},
"FieldLevelEncryptionId": "",
"ForwardedValues": {
"QueryString": true,
"Cookies": {
"Forward": "none"
},
"Headers": {
"Quantity": 10,
"Items": [
"access-control-allow-origin",
"authorization",
"Origin",
"access-control-allow-credentials",
"access-control-max-age",
"access-control-allow-headers",
"cache-control",
"access-control-allow-methods",
"expirers",
"pragma"
]
},
"QueryStringCacheKeys": {
"Quantity": 1,
"Items": [
"*"
]
}
},
"MinTTL": 0,
"DefaultTTL": 0,
"MaxTTL": 0
}
]
}
Looking for a solution to make bulk change in CacheBehaviour for all TargetOriginID's
Solution
Providing a second answer with some assumption. Let's start with a minimal example input:
{
"CacheBehaviors": {
"Quantity": 2,
"Items": [
{
"PathPattern": "jkl/*",
"TargetOriginId": [
"nkl",
"something else"
]
},
{
"PathPattern": "fgh/*",
"TargetOriginId": [
"xyz",
"abc"
]
}
]
},
"IsIPV6Enabled": true
}
Assuming you want to define a mapping "{old1: new1, old2: new2, old3: new3, …}", the following program could work and is easily extendable:
(.CacheBehaviors.Items[].TargetOriginId[]) |= ({
nkl: "wkl",
xyz: "123",
"something else": "is changed too",
"not found": "never replaced"
}[.] // .)
And if you like to have your mapping at the top/start of your program, bind it to a variable:
{
nkl: "wkl",
xyz: "123",
"something else": "is changed too",
"not found": "rever replaced"
} as $mapping
| (.CacheBehaviors.Items[].TargetOriginId[]) |= ($mapping[.] // .)
Output after running through above's program:
{
"CacheBehaviors": {
"Quantity": 2,
"Items": [
{
"PathPattern": "jkl/*",
"TargetOriginId": [
"wkl",
"is changed too"
]
},
{
"PathPattern": "fgh/*",
"TargetOriginId": [
"123",
"abc"
]
}
]
},
"IsIPV6Enabled": true
}
Is that what you are after? This chooses the new value by key from an object/dictionary/map and falls back to the current value if no mapping was found.
… |= ({ old: "new" }[.] // .)
The mapping itself could be provided as an argument to jq from a separate file:
jq --slurpfile mapping old_to_new_ids.json \
'(.CacheBehaviors.Items[].TargetOriginId[]) |= ($mapping[0][.] // .)'
With the contents of file old_to_new_ids.json simply being:
{
"nkl": "wkl",
"xyz": "123",
"something else": "is changed too",
"not found": "never replaced"
}
Answered By - knittl Answer Checked By - Marie Seifert (WPSolving Admin)