Verify the source system configuration¶

Note

If your migration originates from MSR 3.x.x, proceed directly to Extract the data.

The first step in migrating your source MSR system to a target MSR system is to verify the configuration of the source system.

docker run \
--rm \
-it \
registry.mirantis.com/msr/mmt:<mmt-version> \
verify msr  \
--source-mke-url <mke-url> \
--source-username <admin-username> \
--source-password <admin-password> \
--source-url <source-msr-url> \
--storage-mode <inplace|copy> \
--source-insecure-tls \
/migration

Note

Migrations that use the copy storage mode and a filesystem storage back end must also include the --mount option, to specify the MSR 2.9.x Docker volume that will be mounted to the MMT container at the /storage directory. As --mount is a Docker option, it must be included prior to the registry.mirantis.com/msr/mmt:<mmt-version> portion of the command.

--mount source=dtr-registry-<replica-id>,target=/storage

To obtain the MSR replica ID, run the following command from within an MSR node:

docker ps --format '{{.Names}}' -f name=dtr-rethink | cut -f 3 -d '-'

Command line parameters¶
Parameter	Description
`source-mke-url`	Set the URL for the source Mirantis Kubernetes Engine (MKE) system.
`source-username`	Set the username of the admin user. For MSR 2.9.x source systems, use the MKE admin user.
`source-password`	Set the password of the admin user. For MSR 2.9.x source systems, use the MKE admin user.
`source-url`	Set the URL for the source MSR system.
`storage-mode`	Set the registry migration storage mode. Valid values: `inplace`, `copy`
`source-insecure-tls`	Optional. Set whether to use an insecure connection. Valid values: `true` (skip certificate validation when communicating with the source system), `false` (perform certificate validation when communicating with the source system) Default: `false`

Example output:

Note

Sizing information displays only when a migration is run in copy storage mode.

INFO[0000] Logging level set to "info"
INFO[0000] Migration will be performed with "copy" storage mode
INFO[0000] Verifying health of source MSR <source-msr-url>
INFO[0000] ok
INFO[0000] Verifying provided credentials with source MSR...
INFO[0000] ok
INFO[0000] Verifying health of source MKE <source-mke-url>
INFO[0000] ok
INFO[0000] Verifying provided credentials with source MKE...
INFO[0001] ok
INFO[0001] Extracting MSR storage configuration
INFO[0001] Checking the size of used source storage...
INFO[0001] Retrieving AWS S3 storage size
INFO[0001] Source has size 249 MB
INFO[0001] ok