DOC-4928 Added missing prometheus metrics references to RS 7.8 versioned docs

Author: rrelledge

content/operate/rs/7.8/references/metrics/prometheus-metrics-v1-to-v2.md

@@ -0,0 +1,22 @@
+---
+Title: Transition from Prometheus v1 to Prometheus v2
+alwaysopen: false
+categories:
+- docs
+- integrate
+- rs
+description: Transition from v1 metrics to v2 PromQL equivalents.
+group: observability
+linkTitle: Transition from Prometheus v1 to v2
+summary: Transition from v1 metrics to v2 PromQL equivalents.
+type: integration
+weight: 49
+tocEmbedHeaders: true
+url: '/operate/rs/7.8/references/metrics/prometheus-metrics-v1-to-v2/'
+---
+
+You can [integrate Redis Enterprise Software with Prometheus and Grafana]({{<relref "/operate/rs/monitoring/prometheus_and_grafana">}}) to create dashboards for important metrics.
+
+As of Redis Enterprise Software version 7.8.2, [PromQL (Prometheus Query Language)](https://prometheus.io/docs/prometheus/latest/querying/basics/) metrics are available. V1 metrics are deprecated but still available. You can use the following tables to transition from v1 metrics to equivalent v2 PromQL. For a list of all available v2 metrics, see [Prometheus metrics v2]({{<relref "/operate/rs/references/metrics/prometheus-metrics-v2">}}).
+
+{{<embed-md "rs-prometheus-metrics-transition-plan.md">}}

content/operate/rs/7.8/references/metrics/prometheus-metrics-v1.md

@@ -0,0 +1,22 @@
+---
+Title: Prometheus metrics v1
+alwaysopen: false
+categories:
+- docs
+- integrate
+- rs
+description: V1 metrics available to Prometheus.
+group: observability
+linkTitle: Prometheus metrics v1
+summary: You can use Prometheus and Grafana to collect and visualize your Redis Enterprise Software metrics.
+type: integration
+weight: 48
+tocEmbedHeaders: true
+url: '/operate/rs/7.8/references/metrics/prometheus-metrics-v1/'
+---
+
+You can [integrate Redis Enterprise Software with Prometheus and Grafana]({{<relref "/operate/rs/monitoring/prometheus_and_grafana">}}) to create dashboards for important metrics.
+
+As of Redis Enterprise Software version 7.8.2, v1 metrics are deprecated but still available. For help transitioning from v1 metrics to v2 PromQL, see [Prometheus v1 metrics and equivalent v2 PromQL]({{<relref "/operate/rs/references/metrics/prometheus-metrics-v1-to-v2">}}).
+
+{{<embed-md "rs-prometheus-metrics-v1.md">}}