Here is the ES container logs
[2021-03-01T14:32:33,256][INFO ][o.e.e.NodeEnvironment ] [opDJrKj] using [1] data paths, mounts [[/usr/share/elasticsearch/data (/dev/sda5)]], net usable_space [541.5gb], net total_space [915.3gb], types [ext4]
[2021-03-01T14:32:33,265][INFO ][o.e.e.NodeEnvironment ] [opDJrKj] heap size [2gb], compressed ordinary object pointers [true]
[2021-03-01T14:32:33,441][INFO ][o.e.n.Node ] [opDJrKj] node name derived from node ID [opDJrKjdSkWakc2f4pS6MA]; set [node.name] to override
[2021-03-01T14:32:33,442][INFO ][o.e.n.Node ] [opDJrKj] version[6.8.13], pid[1], build[default/docker/be13c69/2020-10-16T09:09:46.555371Z], OS[Linux/5.8.0-44-generic/amd64], JVM[AdoptOpenJDK/OpenJDK 64-Bit Server VM/15/15+36]
[2021-03-01T14:32:33,442][INFO ][o.e.n.Node ] [opDJrKj] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseG1GC, -XX:G1ReservePercent=25, -XX:InitiatingHeapOccupancyPercent=30, -Des.networkaddress.cache.ttl=60, -Des.networkaddress.cache.negative.ttl=10, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -XX:+ShowCodeDetailsInExceptionMessages, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -Djava.io.tmpdir=/tmp/elasticsearch-2408253882814728710, -XX:+HeapDumpOnOutOfMemoryError, -XX:HeapDumpPath=data, -XX:ErrorFile=logs/hs_err_pid%p.log, -Xlog:gc*,gc+age=trace,safepoint:file=logs/gc.log:utctime,pid,tags:filecount=32,filesize=64m, -Djava.locale.providers=COMPAT, -XX:UseAVX=2, -Des.cgroups.hierarchy.override=/, -Xms2g, -Xmx2g, -Des.path.home=/usr/share/elasticsearch, -Des.path.conf=/usr/share/elasticsearch/config, -Des.distribution.flavor=default, -Des.distribution.type=docker]
[2021-03-01T14:32:35,546][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [aggs-matrix-stats]
[2021-03-01T14:32:35,546][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [analysis-common]
[2021-03-01T14:32:35,546][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [ingest-common]
[2021-03-01T14:32:35,547][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [ingest-geoip]
[2021-03-01T14:32:35,547][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [ingest-user-agent]
[2021-03-01T14:32:35,547][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [lang-expression]
[2021-03-01T14:32:35,550][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [x-pack-upgrade]
[2021-03-01T14:32:35,551][INFO ][o.e.p.PluginsService ] [opDJrKj] loaded module [x-pack-watcher]
[2021-03-01T14:32:35,551][INFO ][o.e.p.PluginsService ] [opDJrKj] no plugins loaded
[2021-03-01T14:32:39,672][INFO ][o.e.x.s.a.s.FileRolesStore] [opDJrKj] parsed [0] roles from file [/usr/share/elasticsearch/config/roles.yml]
[2021-03-01T14:32:40,240][INFO ][o.e.x.m.p.l.CppLogMessageHandler] [opDJrKj] [controller/97] [Main.cc@114] controller (64 bit): Version 6.8.13 (Build c959f131d0de3b) Copyright (c) 2020 Elasticsearch BV
[2021-03-01T14:32:40,901][INFO ][o.e.d.DiscoveryModule ] [opDJrKj] using discovery type [single-node] and host providers [settings]
[2021-03-01T14:32:41,891][INFO ][o.e.n.Node ] [opDJrKj] initialized
[2021-03-01T14:32:41,891][INFO ][o.e.n.Node ] [opDJrKj] starting ...
[2021-03-01T14:32:42,032][INFO ][o.e.t.TransportService ] [opDJrKj] publish_address {10.0.0.127:9300}, bound_addresses {0.0.0.0:9300}
[2021-03-01T14:32:42,166][INFO ][o.e.h.n.Netty4HttpServerTransport] [opDJrKj] publish_address {10.0.0.127:9200}, bound_addresses {0.0.0.0:9200}
[2021-03-01T14:32:42,166][INFO ][o.e.n.Node ] [opDJrKj] started
[2021-03-01T14:32:45,139][WARN ][r.suppressed ] [opDJrKj] path: /_stats, params: {}
org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];
at org.elasticsearch.cluster.block.ClusterBlocks.globalBlockedException(ClusterBlocks.java:191) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction.checkGlobalBlock(TransportIndicesStatsAction.java:72) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction.checkGlobalBlock(TransportIndicesStatsAction.java:49) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.action.support.broadcast.node.TransportBroadcastByNodeAction$AsyncAction.<init>(TransportBroadcastByNodeAction.java:258) ~[elasticsearch-6.8.13.jar:6.8.13]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:656) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysPlain(NioEventLoop.java:556) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:510) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:470) [netty-transport-4.1.32.Final.jar:4.1.32.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$5.run(SingleThreadEventExecutor.java:909) [netty-common-4.1.32.Final.jar:4.1.32.Final]
at java.lang.Thread.run(Thread.java:832) [?:?]
[2021-03-01T14:32:50,021][WARN ][r.suppressed ] [opDJrKj] path: /_stats, params: {}
org.elasticsearch.cluster.block.ClusterBlockException: blocked by: [SERVICE_UNAVAILABLE/1/state not recovered / initialized];
at org.elasticsearch.cluster.block.ClusterBlocks.globalBlockedException(ClusterBlocks.java:191) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction.checkGlobalBlock(TransportIndicesStatsAction.java:72) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.action.admin.indices.stats.TransportIndicesStatsAction.checkGlobalBlock(TransportIndicesStatsAction.java:49) ~[elasticsearch-6.8.13.jar:6.8.13]
inal.jar:4.1.32.Final]
org.elasticsearch.action.support.broadcast.node.TransportBroadcastByNodeAction$AsyncAction.<init>(TransportBroadcastByNodeAction.java:258) ~[elasticsearch-6.8.13.jar:6.8.13]
at org.elasticsearch.xpack.security.action.filter.SecurityActionFilter.apply(SecurityActionFilter.java:121) [x-pack-security-6.8.13.jar:6.8.13]
[2021-03-01T14:33:11,421][WARN ][o.e.x.s.a.s.m.NativeRoleMappingStore] [opDJrKj] Failed to clear cache for realms [[]]
[2021-03-01T14:33:11,460][INFO ][o.e.l.LicenseService ] [opDJrKj] license [9be1d0a1-e528-464d-b77a-ca4627d7a9f7] mode [basic] - valid
[2021-03-01T14:33:11,463][INFO ][o.e.g.GatewayService ] [opDJrKj] recovered [27] indices into cluster_state
[2021-03-01T14:34:56,026][INFO ][o.e.c.r.a.AllocationService] [opDJrKj] Cluster health status changed from [RED] to [YELLOW] (reason: [shards started [[fx-notifications][1], [fx-notifications][4]] ...]).
[2021-03-01T16:54:01,857][WARN ][o.e.m.j.JvmGcMonitorService] [opDJrKj] [gc][8397] overhead, spent [872ms] collecting in the last [1.1s]
[2021-03-01T16:56:52,050][INFO ][o.e.m.j.JvmGcMonitorService] [opDJrKj] [gc][8567] overhead, spent [472ms] collecting in the last [1.1s]
[2021-03-01T17:03:56,654][WARN ][o.e.m.j.JvmGcMonitorService] [opDJrKj] [gc][8990] overhead, spent [697ms] collecting in the last [1s]