Support azure storage, add examples

[haorenfsa]

/cc @mintcckey @zwd1208

[codecov[bot]]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.02% :tada:

Comparison is base (0383f78) 80.14% compared to head (3234589) 80.16%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #15 +/- ## ========================================== + Coverage 80.14% 80.16% +0.02% ========================================== Files 47 47 Lines 4754 4760 +6 ========================================== + Hits 3810 3816 +6 Misses 797 797 Partials 147 147 ``` | [Files Changed](https://app.codecov.io/gh/zilliztech/milvus-operator/pull/15?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech) | Coverage Δ | | |---|---|---| | [pkg/util/util.go](https://app.codecov.io/gh/zilliztech/milvus-operator/pull/15?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-cGtnL3V0aWwvdXRpbC5nbw==) | `92.07% <ø> (ø)` | | | [pkg/controllers/conditions.go](https://app.codecov.io/gh/zilliztech/milvus-operator/pull/15?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-cGtnL2NvbnRyb2xsZXJzL2NvbmRpdGlvbnMuZ28=) | `89.71% <100.00%> (ø)` | | | [pkg/external/kafka.go](https://app.codecov.io/gh/zilliztech/milvus-operator/pull/15?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-cGtnL2V4dGVybmFsL2thZmthLmdv) | `100.00% <100.00%> (ø)` | | | [pkg/external/minio.go](https://app.codecov.io/gh/zilliztech/milvus-operator/pull/15?src=pr&el=tree&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=zilliztech#diff-cGtnL2V4dGVybmFsL21pbmlvLmdv) | `91.30% <100.00%> (+1.30%)` | :arrow_up: |

:umbrella: View full report in Codecov by Sentry.
:loudspeaker: Have feedback on the report? Share it here.

[sre-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: haorenfsa, mintcckey

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/zilliztech/milvus-operator/blob/main/OWNERS)~~ [haorenfsa] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[sre-ci-robot]

New changes are detected. LGTM label has been removed.