* Docs: add zh_cn/juicefs_on_rancher.md

* update

* update

* fix
Co-authored-by: Nliyong <chnliyong@gmail.com>

meta: use pointer receiver in emptyContext methods to avoid ineffective assignment in WithValue (#877)

The assignment in WithValue will not modify the Context field as expected, since the receiver is a value that will be copied when the method is called.

* meta: don't return EINVAL when encountering unknown flags

* fix tests

* add ToC for Docker English doc

* fix error link in ToC

* add ToC in Docker Chinese doc

* add ToC in K8s Chinese doc

* fix error in ToC

* add ToC to K8s English doc

`lz4` is the previous default compress algrithm, and we changed that
to `none` in v0.12, then you can't update the AK/SK without specifying
`--compresss` for existing volumes.

This PR allows user to update AK/SK without specify `--compress` for
existing volumes.

* meta: increate inode available automatically to get a proper inode usage

* minor fix

* Docs: add LTP compatibility test to ToC

* Fix

* add entry cache for Java SDK and S3 gateway

* cleanup

* cleanup

* fix

* update docs

* meta: support lookup '.' and '..'

* support . and .. for redis and sql engine
Co-authored-by: NDavies Liu <davies@juicedata.io>

* meta/tkv: fix transaction for read-only mount

* meta: no need to close session if read-only

* no warning if compaction fail with missing objects

* address comments

* docs: use more accurate description

* Update juicefs_vs_cephfs.md

* Docs: update zh_cn/hadoop_java_sdk.md

* update: recreate a table of content

* docs: add explanation about S3QL data reliablity

* address comments

* update the description

* add Milvus and Kylin case in ADOPTER list as ecosystem content

* Update ADOPTERS.md
Co-authored-by: NChangjian Gao <gaochangjian@gmail.com>

* Docs: add en/juicefs_on_k3s.md

* Update

* Update
Co-authored-by: NChangjian Gao <gcj@juicedata.io>

* Docs: add en/juicefs_vs_s3ql.md

* Update
Co-authored-by: NChangjian Gao <gcj@juicedata.io>