docs(embedded-cluster): document SELinux support and hardened-image limitation for v3 - #4439
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…imitation for v3 The v3 overview Limitations section didn't mention SELinux, so a v3 reader had no positive statement that installing under SELinux enforcing mode is supported. This carries the existing v2.0.0 overview bullet forward to v3, dropping the "2.8.0 and later" version qualifier and calling out enforcing mode explicitly.
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Summary
The Embedded Cluster v3 overview Limitations section didn't mention SELinux at all, so a v3 reader had no positive statement that installing under SELinux enforcing mode is supported. This fills that gap by carrying the existing v2.0.0 overview bullet forward to v3.
This is a doc addition (closing an omission), not a correction — nothing in the current docs was wrong. The v2.0.0 overview already correctly states 2.8.0+ installs in standard SELinux environments; v3 simply never restated it.
Changes
embedded-cluster/embedded-overview.mdxstating that STIG/CIS-hardened OS images are unsupported, and that EC installs in standard SELinux environments including enforcing mode (via bin-dir file contexts + data-dir context restore). Drops the "2.8.0 and later" qualifier since all v3 supports it.Context
Prompted by a field question: does EC support SELinux enforcing, or permissive-only? The permissive-only behavior was real but pre-2.8.0 (the
2.1.0release note added a preflight that failed on enforcing;2.8.0reversed it). Sources:2.1.0(enforcing preflight) and2.8.0(SELinux enablement)embedded-cluster_versioned_docs/version-2.0.0/embedded-overview.mdx(the v2 bullet this mirrors)UAT