Fix Multi Arch Container Image builds

[jsirianni]

Description of Changes

• re-worked publish-docker-release to actually work
  • configure docker context and buildx correctly
  • build with plain output, which is nicer to watch in circle ci
• added build-docker
  • identical to publish-docker-release, but does not push the built image
  • runs on every PR so we can be sure image builds are working, not just during release
• reworked dockerfile to use two stage build
  • build binary in golang container, which gives us auto detection of GOARCH
  • download and unzip plugins inside the stage container, and copy the plugins/ directory

Please check that the PR fulfills these requirements

• Tests for the changes have been added (for bug fixes / features)
• Docs have been added / updated (for bug fixes / features)
• Add a changelog entry (for non-trivial bug fixes / features)
• CI passes

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.4310291	-0.05177641	125.80563	-1.9512329
1	5000	5.3620267	+0.20676947	138.19492	-0.9520416
1	10000	10.482749	+0.39645958	142.9464	-5.5717926
1	50000	50.639786	+3.2276115	176.75714	+0.89385986
1	100000	97.44919	-9.084511	230.19922	-11.028687
10	100	2.0518215	+5.865097e-05	133.3253	-3.1167755
10	500	6.1036124	-0.22414064	139.94975	+2.4007263
10	1000	12.017477	-1.6897335	146.57516	+0.51023865
10	5000	55.086597	-5.1209335	180.26414	+0.7384186
10	10000	107.640045	+4.5355377	224.14696	+4.3847046

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.4483163	-0.034489155	129.44383	+1.686966
1	5000	4.9654427	-0.18981457	137.16891	-1.9780426
1	10000	10.189993	+0.1037035	146.5493	-1.9688873
1	50000	49.601078	+2.1889038	177.23653	+1.3732452
1	100000	98.620316	-7.9133835	231.2003	-10.027603
10	100	2.017299	-0.034463882	132.48586	-3.9562225
10	500	6.12079	-0.20696306	137.89264	+0.34361267
10	1000	11.63813	-2.0690804	146.01993	-0.04499817
10	5000	56.65332	-3.5542107	183.77586	+4.2501373
10	10000	108.29422	+5.1897125	231.2923	+11.530045

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.5172954	+0.03448987	128.92996	+1.1730957
1	5000	5.10355	-0.051707268	137.32785	-1.819107
1	10000	10.379573	+0.29328346	144.12338	-4.394806
1	50000	49.430946	+2.0187721	176.72939	+0.8661041
1	100000	101.21884	-5.3148575	240.84038	-0.38752747
10	100	1.9137814	-0.13798141	132.52452	-3.9175568
10	500	6.87935	+0.5515971	142.53596	+4.9869385
10	1000	12.000245	-1.7069654	146.47104	+0.40611267
10	5000	56.752995	-3.4545364	180.1192	+0.59347534
10	10000	114.39869	+11.294182	237.59213	+17.82988

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.4138417	-0.086165905	127.93602	+0.6585388
1	5000	5.2759113	+0.65518427	141.83755	+6.0627747
1	10000	9.448343	-0.91378593	144.07516	+2.1543732
1	50000	46.431705	-4.224266	177.42389	-0.2533722
1	100000	95.28218	-8.059723	233.84335	-8.180084
10	100	2.034467	-8.7976456e-05	133.30927	+0.80036926
10	500	6.396722	-0.12062454	139.58864	-1.4430084
10	1000	11.758759	-0.41356373	146.97993	+0.6629944
10	5000	56.05205	+0.09132385	177.82112	-2.5417633
10	10000	110.02786	-0.4614792	232.90895	+3.6799622

[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.482745	-0.017262578	129.38295	+2.1054688
1	5000	5.362261	+0.74153376	138.52936	+2.7545776
1	10000	10.155363	-0.20676613	144.78058	+2.859787
1	50000	47.621597	-3.0343742	170.4177	-7.2595673
1	100000	95.91471	-7.4271927	227.45245	-14.570984
10	100	2.086262	+0.05170703	137.22832	+4.7194214
10	500	6.120859	-0.39648724	139.3055	-1.7261505
10	1000	11.93129	-0.2410326	148.45851	+2.141571
10	5000	58.34547	+2.3847427	180.80469	+0.44180298
10	10000	107.69634	-2.7929993	233.82947	+4.600479

[codecov]

Codecov Report

Merging #407 (35a99cf) into master (4a35465) will decrease coverage by 0.05%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master     #407      +/-   ##
==========================================
- Coverage   73.09%   73.04%   -0.05%     
==========================================
  Files         124      124              
  Lines        8071     8071              
==========================================
- Hits         5899     5895       -4     
- Misses       1672     1673       +1     
- Partials      500      503       +3     

Impacted Files	Coverage Δ
operator/builtin/input/file/file.go	77.04% <0.00%> (-1.53%)	⬇️
operator/builtin/input/file/reader.go	59.42% <0.00%> (-1.45%)	⬇️
operator/builtin/output/newrelic/newrelic.go	74.38% <0.00%> (+0.83%)	⬆️

---

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[djaglowski]

Log Files	Logs / Second	CPU Avg (%)	CPU Avg Δ (%)	Memory Avg (MB)	Memory Avg Δ (MB)
1	1000	1.5344918	+0.034484148	127.11261	-0.16487122
1	5000	5.120672	+0.49994516	135.61113	-0.16365051
1	10000	10.517484	+0.1553545	143.98155	+2.0607605
1	50000	50.05197	-0.6040001	175.36557	-2.3116913
1	100000	97.74379	-5.598114	234.48398	-7.539459
10	100	2.1379826	+0.10342765	133.80644	+1.2975464
10	500	6.0690365	-0.4483099	136.20757	-4.8240814
10	1000	12.844543	+0.6722212	144.25552	-2.0614166
10	5000	55.91414	-0.046588898	180.77963	+0.41674805
10	10000	118.90489	+8.41555	234.41621	+5.1872253