Created
December 19, 2019 13:47
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Check if azure storage container exists
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| #!/usr/bin/env bash | |
| # vim: ai ts=2 sw=2 et sts=2 ft=sh | |
| set -euf -o pipefail | |
| storage_account="$1" | |
| container_name="$2" | |
| access_key="$3" | |
| # HTTP Request headers | |
| x_ms_date_h="x-ms-date:$(TZ=GMT date "+%a, %d %h %Y %H:%M:%S %Z")" | |
| x_ms_version_h="x-ms-version:2019-02-02" | |
| # Build the signature string | |
| canonicalized_headers="${x_ms_date_h}\\n${x_ms_version_h}" | |
| canonicalized_resource="/${storage_account}/${container_name}" | |
| string_to_sign="GET\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n\\n${canonicalized_headers}\\n${canonicalized_resource}\\nrestype:container" | |
| # Decode the Base64 encoded access key, convert to Hex. | |
| decoded_hex_key="$(echo -n "$access_key" | base64 -d | tr -d '\n' | xxd -p -c256 | tr -d '[:space:]')" | |
| # Create the HMAC signature for the Authorization header | |
| signature=$(printf "$string_to_sign" | openssl dgst -sha256 -mac HMAC -macopt "hexkey:$decoded_hex_key" -binary | base64 | tr -d '\n') | |
| authorization_header="Authorization: SharedKey $storage_account:$signature" | |
| curl -v \ | |
| -H "$x_ms_date_h" \ | |
| -H "$x_ms_version_h" \ | |
| -H "$authorization_header" \ | |
| "https://${storage_account}.blob.core.windows.net/${container_name}?restype=container" |
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