ContainerLab

Create the file -passwd.txt and copy the access token excluding the quotes provided by Juniper customer care team.
Login to enterprise hub using the following command:
root@ubuntu-vm18$ cat passwd.txt | docker login -u"<registered-email-id>" --password-stdin enterprise-hub.juniper.net:443

To Download this software, you must Log In and have a valid service contract associated to your Cisco.com profile.
If you do not have a service contract you can get one through:
  Your Cisco Account Team if you have a direct purchase agreement with Cisco
  Your Cisco Partner or Reseller
Once you have the service contract you must associate your service contract to your Cisco.com user ID with Profile Manager

"images": [
        {
            "filename": "csr1000v-universalk9.17.03.06-serial.qcow2",
            "version": "17.03.06",
            "md5sum": "086ab9bef6e66de847af0da3910c60e8",
            "filesize": 1422000128,
            "download_url": "https://software.cisco.com/download/home/284364978/type/282046477/release/Gibraltar-16.12.3"
        },
        {
            "filename": "csr1000v-universalk9.16.12.03-serial.qcow2",
            "version": "16.12.3",
            "md5sum": "1fc380569ad3cc145fb9cbc993b2eb32",
            "filesize": 986775552,
            "download_url": "https://software.cisco.com/download/home/284364978/type/282046477/release/Gibraltar-16.12.3"
        },

    "images": [
        {
            "filename": "titanium-final.7.3.0.D1.1.qcow2",
            "version": "7.3.0",
            "md5sum": "b4cd6edf15ab4c6bce53c3f6c1e3a742",
            "filesize": 214368256,
            "download_url": "https://learningnetworkstore.cisco.com/myaccount"
        },